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Common law



 
 
Common law refers to law
LAW

LAW may refer to:* Anti-tank warfare, e.g. the US Army M72 LAW or the British Army LAW 80*Palestinian Society for the Protection of Human Rights ...
 and the corresponding legal system
Legal systems of the world

The three major legal systems of the world today consist of civil law , common law and religious law. However, each country often develops variations on each system or incorporates many other features into the system....
 developed through decisions
Legal opinion

In law, an opinion is usually a written explanation by a judge that accompanies their ruling in a legal case, laying out the rationale and legal principles that led them to rule as they did....
 of courts and similar tribunals (called case law
Case law

Case law is the general term for the principles and rules of law set forth in judge legal opinion from courts of law. Case law incorporates courts' decisions from individual legal case and encompasses courts' interpretations of statutes, constitution provisions, administrative law regulations and, in some cases, law originating solely f...
), rather than through legislative statutes or executive action
Executive (government)

Sorry, no overview for this topic
.

Common law
LAW

LAW may refer to:* Anti-tank warfare, e.g. the US Army M72 LAW or the British Army LAW 80*Palestinian Society for the Protection of Human Rights ...
 is law created and refined by judge
Judge

A judge, or arbiter of justice, is a lead official who presides over a court of law,which is operated by the local, state, and/or federal government....
s: a decision in a currently pending legal case
Legal case

A legal case is a dispute between opposing parties resolved by a court, or by some equivalent legal process. A legal case may be either Civil law or criminal law.There is a defendant and an accuser....
 depends on decisions in previous cases and affects the law to be applied in future cases. When there is no authoritative statement of the law, judges have the authority and duty to make law by creating precedent
Precedent

In common law Legal systems of the world, a precedent or authority is a legal case establishing a principle or rule that a court or other judicial body adopts when deciding subsequent cases with similar issues or facts....
.
The body of precedent is called "common law" and it binds future decisions.






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Encyclopedia


Common law refers to law
LAW

LAW may refer to:* Anti-tank warfare, e.g. the US Army M72 LAW or the British Army LAW 80*Palestinian Society for the Protection of Human Rights ...
 and the corresponding legal system
Legal systems of the world

The three major legal systems of the world today consist of civil law , common law and religious law. However, each country often develops variations on each system or incorporates many other features into the system....
 developed through decisions
Legal opinion

In law, an opinion is usually a written explanation by a judge that accompanies their ruling in a legal case, laying out the rationale and legal principles that led them to rule as they did....
 of courts and similar tribunals (called case law
Case law

Case law is the general term for the principles and rules of law set forth in judge legal opinion from courts of law. Case law incorporates courts' decisions from individual legal case and encompasses courts' interpretations of statutes, constitution provisions, administrative law regulations and, in some cases, law originating solely f...
), rather than through legislative statutes or executive action
Executive (government)

Sorry, no overview for this topic
.

Common law
LAW

LAW may refer to:* Anti-tank warfare, e.g. the US Army M72 LAW or the British Army LAW 80*Palestinian Society for the Protection of Human Rights ...
 is law created and refined by judge
Judge

A judge, or arbiter of justice, is a lead official who presides over a court of law,which is operated by the local, state, and/or federal government....
s: a decision in a currently pending legal case
Legal case

A legal case is a dispute between opposing parties resolved by a court, or by some equivalent legal process. A legal case may be either Civil law or criminal law.There is a defendant and an accuser....
 depends on decisions in previous cases and affects the law to be applied in future cases. When there is no authoritative statement of the law, judges have the authority and duty to make law by creating precedent
Precedent

In common law Legal systems of the world, a precedent or authority is a legal case establishing a principle or rule that a court or other judicial body adopts when deciding subsequent cases with similar issues or facts....
.
The body of precedent is called "common law" and it binds future decisions. In future cases, when parties disagree on what the law is, an idealized common law court looks to past precedent
Precedent

In common law Legal systems of the world, a precedent or authority is a legal case establishing a principle or rule that a court or other judicial body adopts when deciding subsequent cases with similar issues or facts....
ial decisions of relevant courts. If a similar dispute has been resolved in the past, the court is bound
Binding precedent

In law, a binding precedent is a precedent which must be followed by all lower courts under common law Legal systems of the world. In English law it is usually created by the decision of a higher court, such as the Judicial functions of the House of Lords in the United Kingdom....
 to follow the reasoning used in the prior decision (this principle is known as stare decisis
Stare decisis

Stare decisis is the legal principle under which judges are obligated to follow the precedents established in prior decisions.In the United States, which uses a common law system in its federal courts and most of its state courts, the United States Court of Appeals for the Ninth Circuit has stated:...
). If, however, the court finds that the current dispute is fundamentally distinct from all previous cases, it will decide as a "matter of first impression
Case of first impression

A case of first impression is a legal case in which there is no binding authority on the matter presented. A case of first impression may be a case of first impression in only a particular jurisdiction....
." Thereafter, the new decision becomes precedent, and will bind future courts under the principle of stare decisis
Stare decisis

Stare decisis is the legal principle under which judges are obligated to follow the precedents established in prior decisions.In the United States, which uses a common law system in its federal courts and most of its state courts, the United States Court of Appeals for the Ninth Circuit has stated:...
.

In practice, common law systems are considerably more complicated than the idealized system described above. The decisions of a court are binding only in a particular jurisdiction
Jurisdiction

In law, jurisdiction is the practical authority granted to a formally constituted legal body or to a political leader to deal with and make pronouncements on legal matters and, by implication, to administer justice within a defined area of responsibility....
, and even within a given jurisdiction, some courts have more power than others. For example, in most jurisdictions, decisions by appellate courts are binding on lower courts in the same jurisdiction and on future decisions of the same appellate court, but decisions of non-appellate courts are only non-binding persuasive authority. Interactions between common law, constitutional law
Constitutional law

Constitutional law is the study of foundational or basic laws of nation states and other political organizations.Constitutions are the framework for government and may limit or define the authority and procedure of political bodies to execute new laws and regulations....
, statutory law and regulatory law also give rise to considerable complexity. However stare decisis, the principle that similar cases should be decided according to consistent principled rules so that they will reach similar results, lies at the heart of all common law systems.

Common law legal systems are in widespread use, particularly in those nations which trace their legal heritage to Britain, including the United Kingdom
United Kingdom

The United Kingdom of Great Britain and Northern Ireland, commonly known as the United Kingdom , the UK or Britain,is a sovereign state located off the northwestern coast of continental Europe....
, most of the United States
United States

The United States of America is a Federal government constitutional republic comprising U.S. state and a federal district. The country is situated mostly in central North America, where its Contiguous United States and Washington, D.C., the Capital districts and territories, lie between the Pacific Ocean and Atlantic Oceans, Borders of the U...
, and other former colonies of the British Empire
British Empire

The British Empire comprised the dominions, Crown colony, protectorates, League of Nations mandate, and other Dependent territory ruled or administered by the United Kingdom , that had originated with the overseas colonies and trading posts established by England in the late 16th and early 17th centuries....
 such as India
India

India, officially the Republic of India , is a country in South Asia. It is the List of countries and outlying territories by total area country by geographical area, the List of countries by population country, and the most populous liberal democracy in the world....
, Canada
Canada

Canada is a country occupying most of northern North America, extending from the Atlantic Ocean in the east to the Pacific Ocean in the west and northward into the Arctic Ocean....
, New Zealand
New Zealand

New Zealand is an island country in the south-western Pacific Ocean comprising two main landmasses , and numerous Islands of New Zealand, most notably Stewart Island/Rakiura and the Chatham Islands....
, Australia
Australia

Australia, officially the Commonwealth of Australia, is a country in the southern hemisphere comprising the Australia of the world's smallest continent, the major island of Tasmania, and numerous list of islands of Australia in the Indian Ocean and Pacific Oceans....
 and Hong Kong
Hong Kong

Hong Kong , officially the Hong Kong Special Administrative Region, is a territory located in Southern China in East Asia, bordering the province of Guangdong to the north and facing the South China Sea to the east, west and south....
.

Primary definitions


The term common law has three main connotations and several historical meanings worth mentioning:

1. Common law as opposed to statutory law
Statutory law

Statutory law or statute law is written law set down by a legislature or other governing authority such as the executive branch of government in response to a perceived need to clarify the functioning of government, improve civil order, to codification existing law, or for an individual or company to obtain special treatment....
 and regulatory law

This connotation distinguishes between the authorities that promulgate a law. For example, in most areas of law in most jurisdiction
Jurisdiction

In law, jurisdiction is the practical authority granted to a formally constituted legal body or to a political leader to deal with and make pronouncements on legal matters and, by implication, to administer justice within a defined area of responsibility....
s in countries that trace their legal heritage to Britain (members of the Commonwealth of Nations
Commonwealth of Nations

The Commonwealth of Nations, also known as the Commonwealth or the British Commonwealth, is an intergovernmental organization of fifty-three independent member states....
 and the United States), there are "statute
Statute

A statute is a formal written enactment of a legislative authority that governs a country, state, city, or county. Typically, statutes command or prohibit something, or declare policy....
s" enacted by a legislature
Legislature

Legislature is a type of representative deliberative assembly with the power to create and change laws. The law created by a legislature is called legislation or statutory law....
, "regulations" promulgated by executive branch agencies pursuant to a delegation of rule-making authority from a legislature, and common law or "case law
Case law

Case law is the general term for the principles and rules of law set forth in judge legal opinion from courts of law. Case law incorporates courts' decisions from individual legal case and encompasses courts' interpretations of statutes, constitution provisions, administrative law regulations and, in some cases, law originating solely f...
", i.e., decisions issued by courts (or quasi-judicial tribunal
Tribunal

Tribunal in the general sense is any person or institution with the authority to judge, adjudication on, or determine claims or disputes - whether or not it is called a tribunal in its title....
s within agencies). This first connotation can be further differentiated, into (a) law arising purely from the common law with no express statutory authority, e.g., most criminal law and procedural law before the 20th century, and even today, most of contract law and the law of torts, and (b) decisions that discuss and decide the fine boundaries and distinctions in law promulgated by other bodies, such as the Constitution
Constitution

A constitution is a system for government — often codified as a written document — that establishes the rules and principles of an autonomous political entity....
, statutes and regulations.

2. Common law legal systems as opposed to civil law legal systems
Civil law (legal system)

Civil law is a most prevalent legal system in the modern world and the oldest in human history. It is based on a code, or "a systematic collection of interrelated articles written in a terse, staccato style." The two other major legal systems in the world are common law and Islamic law....

This connotation differentiates "common law" jurisdictions and legal systems from "civil law
Civil law (legal system)

Civil law is a most prevalent legal system in the modern world and the oldest in human history. It is based on a code, or "a systematic collection of interrelated articles written in a terse, staccato style." The two other major legal systems in the world are common law and Islamic law....
" or "code
Codification

In law, codification is the process of collecting and restating the law of a jurisdiction in certain areas, usually by subject, forming a legal code....
" jurisdictions. Common law systems place great weight on court decisions, which are considered "law" with the same force of law as statutes. By contrast, in civil law jurisdictions (the legal tradition that prevails in, or is combined with common law in, almost all non-Islamic, non-common law countries), judicial precedent is given relatively less weight, and scholarly literature is given relatively more. For example, the Napoleonic code
Napoleonic code

The Napoleonic Code, or Code Napol?on is the France civil code, established under Napoleon I of France in 1804. It was drafted rapidly by a commission of four eminent jurists and entered into force on March 21, 1804....
 expressly forbade French judges from pronouncing the law.

3. Law as opposed to equity

This connotation differentiates "common law" (or just "law") from "equity". Before 1873, England
England

native_name =|conventional_long_name = England|common_name = England|image_flag = Flag of England.svg|image_coat = England COA.svg|symbol_type = Royal Coat of Arms...
 had two parallel court systems: courts of "law" that could only award money damages and recognized only the legal owner of property, and courts of "equity" that could issue injunctive relief
Injunction

An injunction is an equitable remedy in the form of a court order, whereby a party is required to do, or to refrain from doing, certain acts. The party that fails to adhere to the injunction faces civil or criminal penalties and may have to pay damages or accept sanctions for failing to follow the court's order....
 (that is, a court order to a party to do something, give something to someone, or stop doing something) and recognized trusts of property. This split propagated to many of the colonies, including the United States (see "Reception Statutes," below). The distinction between "law" and "equity" was important in:
  • categorizing and prioritizing rights to property - for example, the same article of property often has a "legal title" and an "equitable title," and these two groups of ownership rights may be held by different people.
  • in the United States, determining whether the Seventh Amendment's
    Seventh Amendment to the United States Constitution

    The Seventh Amendment of the United States Constitution, which is part of the United States Bill of Rights, codifies the right to a jury trial in certain civil trials....
     right to a jury trial
    Jury trial

    A jury trial is a legal proceeding in which a jury either makes a decision or makes findings of fact which are then applied by a judge. It is be distinguished from a bench trial, in which a judge or panel of judges make all decisions....
     applies (a determination of a fact necessary to resolution of a "common law" claim) or whether the issue will be decided by a judge
    Judge

    A judge, or arbiter of justice, is a lead official who presides over a court of law,which is operated by the local, state, and/or federal government....
     (issues of what the law is, and all issues relating to equity).
  • the standard of review and degree of deference given by an appellate tribunal to the decision of the lower tribunal under review (issues of law are reviewed de novo, that is, "as if new" from scratch by the appellate tribunal, while most issues of equity are reviewed for "abuse of discretion," that is, with great deference to the tribunal below).
  • the remedies available and rules of procedure to be applied.
For most purposes, most jurisdictions, including the U.S. federal system and most states, have merged the two courts. Additionally, even before the separate courts were merged together, most courts were permitted to apply both law and equity (though under potentially different procedural law). Even so, the split survives and remains relevant for determining many issues in these classes. Other exceptions are discussed in "Common Law Systems," below.

4. Historical uses

In addition, there are several historical uses of the term that provide some background as to its meaning. The English Court of Common Pleas dealt with lawsuits in which the King had no interest, i.e. between commoners. Additionally, from at least the 11th century and continuing for several centuries after that, there were several different circuits in the royal court system, served by itinerant judges who would travel from town to town dispensing the King's justice. The term "common law" was used to describe the law held in common between the circuits and the different stops in each circuit. The more widely a particular law was recognized, the more weight it held, whereas purely local customs were generally subordinate to law recognized in a plurality of jurisdictions. These definitions are archaic, their relevance having dissipated with the development of the English legal system over the centuries, but they do explain the origin of the term.

Basic principles of common law


Common law adjudication

In a common law jurisdiction several stages of research and analysis are required to determine what "the law is" in a given situation. First, one must ascertain the facts. Then, one must locate any relevant statutes and cases. Then one must extract the principles, analogies and statements by various courts of what they consider important to determine how the next court is likely to rule on the facts of the present case. Later decisions, and decisions of higher courts or legislatures carry more weight than earlier cases and those of lower courts. Finally, one integrates all the lines drawn and reasons given, and determines what "the law is". Then, one applies that law to the facts.

Evolution of common law to meet changing social needs and improved understanding

The common law is more malleable than statutory law. First, common law courts are not absolutely bound by precedent, but can (when extraordinarily good reason is shown) reinterpret and revise the law, without legislative intervention, to adapt to new trends in political, legal and social philosophy. Second, the common law evolves through a series of gradual steps, that gradually works out all the details, so that over a decade or more, the law can change substantially but without a sharp break, thereby reducing disruptive effects. In contrast, the legislative process is very difficult to get started, and legislatures tend to delay acting until a situation is totally intolerable. For these reasons, legislative changes tend to be large, jarring and disruptive (either positively or negatively).

One example of the gradual change that typifies the common law is the gradual change in liability for negligence. For example, the traditional common law rule through most of the 19th century was that a plaintiff could not recover for a defendant's negligence unless the two were in privity of contract. Thus, only the immediate purchaser could recover for a product defect, and if a part was built up out of parts from parts manufacturers, the ultimate buyer could not recover for injury caused by a defect in the part. Winterbottom v. Wright
Winterbottom v. Wright

Winterbottom v Wright was an important case in England and Wales common law responsible for constraining the law's stance on negligence in the nineteenth century....
, 10 M&W 109, 152 Eng.Rep. 402, 1842 WL 5519 (Exchequer of pleas 1842). In Winterbottom, the postal service had contracted with Wright to maintain its coaches. Winterbottom was a driver for the post. When the coach failed and injured Winterbottom, he sued Wright. The Winterbottom court recognized that there would be "absurd and outrageous consequences" if an injured person could sue any person peripherally involved, and knew it had to draw a line somewhere, a limit on the causal connection between the negligent conduct and the injury. The court looked to the contractual relationships, and held that liability would only flow as far as the person in immediate contract ("privity") with the negligent party.

A first exception to this rule arose in , 6 N.Y. 397 (N.Y. 1852) which held that mislabeling a poison as an innocuous herb, and then selling the mislabeled poison through a dealer who would be expected to resell it, put "human life in imminent danger." Thomas used this as a reason to create an exception to the "privity" rule. In Statler v. Ray Mfg. Co., 195 N.Y. 478, 480 (N.Y. 1909) held that a coffee urn manufacturer was liable to a person injured when the urn exploded, because the urn "was of such a character inherently that, when applied to the purposes for which it was designed, it was liable to become a source of great danger to many people if not carefully and properly constructed."

Yet the privity rule survived. In Cadillac Motor Car Co. v. Johnson, 221 F. 801 (2nd Cir. 1915) (decided by the federal appeals court for New York and several neighboring states), the court held that a car owner could not recover for injuries from a defective wheel, when the automobile owner only had a contract with the automobile dealer, not with the manufacturer, even though there was "no question that the wheel was made of dead and ‘dozy‘ wood, quite insufficient for its purposes."

Finally, in the famous case of , 217 N.Y. 382, 111 N.E. 1050 (N.Y. 1916), Judge Cardozo pulled a broader principle out of these predecessor cases. The facts were almost identical to Cadillac a year earlier: a wheel from a wheel manufacturer was sold to Buick, to a dealer, to MacPherson, and the wheel failed, injuring MacPherson. Judge Cardozo held:

We hold, then, that the principle of Thomas v. Winchester is not limited to poisons, explosives, and things of like nature, to things which in their normal operation are implements of destruction. If the nature of a thing is such that it is reasonably certain to place life and limb in peril when negligently made, it is then a thing of danger. Its nature gives warning of the consequences to be expected. If to the element of danger there is added knowledge that the thing will be used by persons other than the purchaser, and used without new tests then, irrespective of contract, the manufacturer of this thing of danger is under a duty to make it carefully. ... There must be knowledge of a danger, not merely possible, but probable.


Note that Cardozo's new "rule" exists in no prior case, but is inferable as a synthesis of the "thing of danger" principle stated in them, merely extending it to "foreseeable danger" even if "the purposes for which it was designed" were not themselves "a source of great danger." MacPherson takes some care to present itself as foreseeable progression, not a wild departure. Note that Judge Cardozo continues to adhere to the original principle of Winterbottom
Winterbottom v. Wright

Winterbottom v Wright was an important case in England and Wales common law responsible for constraining the law's stance on negligence in the nineteenth century....
, that "absurd and outrageous consequences" must be avoided, and he does so by drawing a new line in the last sentence quoted above: "There must be knowledge of a danger, not merely possible, but probable." But while adhering to the underlying principle that some boundary is necessary, MacPherson
MacPherson v. Buick Motor Co.

MacPherson v. Buick Motor Co., 217 N.Y. 382, 111 N.E. 1050 is the famous New York Court of Appeals opinion by Judge Benjamin N. Cardozo which removed privity of contract from duty in negligence actions....
 overruled the prior common law by rendering the formerly dominant factor in the boundary, that is, the privity formality arising out of a contractual relationship between persons, totally irrelevant. Rather, the most important factor in the boundary would be the nature of the thing sold and the foreseeable uses that downstream purchasers would make of the thing.

This illustrates two crucial principles that are often not well understood by non-lawyers. (a) The law evolves, this evolution is in the hands of judges, and judges have "made law" for hundreds of years. (b) The reasons given for a decision are often more important in the long run than the outcome in a particular case. This is the reason that judicial opinions are usually quite long, and give rationales and policies that can be balanced with judgment in future cases, rather than the bright-line rules usually embodied in statutes.

Interaction of constitutional, statutory and common law

In common law legal systems (connotation 2), the common law (connotation 1) is crucial to understanding almost all important areas of law. For example, in England and Wales
English law

English law is the Legal systems of the world of England and Wales, and is the basis of common law legal systems used in most Commonwealth of Nations countriesand the United States ....
 and in most states of the United States
Law of the United States

The law of the United States was originally largely derived from the common law system of English law, which was in force at the time of the American Revolutionary War....
, the basic law of contract
Contract

A contract is an exchange of promises between two or more parties to do, or refrain from doing, an act which is enforceable in a court of law. It is a binding legal agreement....
s, tort
Tort

Tort law is the name given to a body of law that addresses, and provides remedies for, civil wrongs not arising out of contractual obligations. A person who suffers legal damages may be able to use tort law to receive compensation from someone who is liability, or "liable," for those injuries....
s and property
Property

Property is any physical or virtual entity that is ownership by an individual or jointly by a group of individuals. An owner of property has the right to consumption, sell, Renting, mortgage, transfer and exchange his or her property....
 do not exist in statute, but only in common law (though there may be isolated modifications enacted by statute). In almost all areas of the law (even those where there is a statutory framework, such as contracts for the sale of goods, or the criminal law), legislature-enacted statutes generally give only terse statements of general principle, and the fine boundaries and definitions exist only in the common law (connotation 1). To find out what the precise law is that applies to a particular set of facts, one has to locate precedent
Precedent

In common law Legal systems of the world, a precedent or authority is a legal case establishing a principle or rule that a court or other judicial body adopts when deciding subsequent cases with similar issues or facts....
ial decisions on the topic, and reason from those decisions by analogy
Analogy

Analogy is both the cognition process of transferring information from a particular subject to another particular subject , and a language expression corresponding to such a process....
. To consider but one example, the First Amendment to the United States Constitution
First Amendment to the United States Constitution

The First Amendment to the United States Constitution is the part of the United States Bill of Rights that expressly prohibits the United States Congress from making laws "Establishment Clause of the First Amendment" or that prohibit the Free Exercise Clause of the First Amendment, laws that infringe the Freedom of speech in the United State...
 states "Congress
United States Congress

The United States Congress is the Bicameralism legislature of the Federal government of the United States of the United States of America, consisting of two houses, the United States Senate and the United States House of Representatives....
 shall make no law respecting an establishment of religion, or prohibiting the free exercise thereof" – but interpretation (that is, determining the fine boundaries, and resolving the tension between the "establishment" and "free exercise" clauses) of each of the important terms was delegated by Article III of the Constitution to the judicial branch, so that the current legal boundaries of the Constitutional text can only be determined by consulting the common law.

In common law jurisdictions, legislatures operate under the assumption that statute
Statute

A statute is a formal written enactment of a legislative authority that governs a country, state, city, or county. Typically, statutes command or prohibit something, or declare policy....
s will be interpreted against the backdrop of the pre-existing common law case law
Case law

Case law is the general term for the principles and rules of law set forth in judge legal opinion from courts of law. Case law incorporates courts' decisions from individual legal case and encompasses courts' interpretations of statutes, constitution provisions, administrative law regulations and, in some cases, law originating solely f...
 and custom, and so may leave a number of things unsaid. For example, in most U.S. states, the criminal statutes are primarily codification of pre-existing common law. (Codification
Codification

In law, codification is the process of collecting and restating the law of a jurisdiction in certain areas, usually by subject, forming a legal code....
 is the process of enacting a statute that collects and restates pre-existing law in a single document - when that pre-existing law is common law, the common law remains relevant to the interpretation of these statutes.) In reliance on this assumption, modern statutes often leave a number of terms and fine distinctions unstated -- for example, a statute might be very brief, leaving the precise definition of terms unstated, under the assumption that these fine distinctions will be inherited from pre-existing common law. For this reason, even today American law schools teach the common law of crime as practised in England in 1789, because the backdrop of centuries-old English common law is necessary to interpret and fully understand the literal words of the modern criminal statute.

With the transition from English law, which had common law crimes, to the new legal system under the U.S. Constitution, which prohibited ex post facto law
Ex post facto law

An ex post facto law or retroactive law, is a law that retroactively changes the legal consequences of acts committed or the legal status of facts and relationships that existed prior to the enactment of the law....
s at both the federal and state level, the question was raised whether there could be common law crimes in the United States. It was settled in the case of United States v. Hudson and Goodwin
United States v. Hudson and Goodwin

United States v. Hudson and Goodwin, Case citation , was a case in which the Supreme Court of the United States held that United States Congress must first enact a law criminalizing an activity, attach a penalty, and give the federal courts jurisdiction over the offense in order for the court to render a conviction....
 which decided that common law crimes were prohibited (at least at the Federal level), and that there must always be a (constitutional) statute defining the offense and the penalty for it.

However, many states retain selected common law crimes. Virginia, for example, recognizes robbery as a common law crime and the statute referencing robbery as a crime exists to set the punishment. Virginia Code section 1-200 establishes the continued existence and vitality of common law principles and provides that "The common law of England, insofar as it is not repugnant to the principles of the Bill of Rights and Constitution of this Commonwealth, shall continue in full force within the same, and be the rule of decision, except as altered by the General Assembly".

By contrast to statutory codification of common law, some statutes displace common law, for example to create a new cause of action
Cause of action

In the law, a cause of action is a set of facts sufficient to justify a right to sue. The phrase may refer to the legal theory upon which a plaintiff brings suit ....
 that did not exist in the common law, or to legislatively overrule the common law. An example is the tort
Tort

Tort law is the name given to a body of law that addresses, and provides remedies for, civil wrongs not arising out of contractual obligations. A person who suffers legal damages may be able to use tort law to receive compensation from someone who is liability, or "liable," for those injuries....
 of wrongful death, which allows certain persons, usually a spouse, child or estate
Estate (law)

An estate is the net worth of a person at any point in time. It is the sum of a person's assets - legal rights, interests and entitlements to property of any kind - less all liabilities at that time....
, to sue for damages on behalf of the deceased. There is no such tort in English common law; thus, any jurisdiction that lacks a wrongful death statute will not allow a lawsuit for the wrongful death of a loved one. Where a wrongful death statute exists, the compensation or other remedy available is limited to the remedy specified in the statute (typically, an upper limit on the amount of damages). Courts generally interpret statutes that create new causes of action narrowly – that is, limited to their precise terms – because the courts generally recognize the legislature as being supreme in deciding the reach of judge-made law unless such statute should violate some "second order" constitutional law
Constitutional law

Constitutional law is the study of foundational or basic laws of nation states and other political organizations.Constitutions are the framework for government and may limit or define the authority and procedure of political bodies to execute new laws and regulations....
 provision (cf. judicial activism
Judicial activism

Judicial activism may be either a descriptive or a normative term, but in common usage is primarily used in a way that is both normative and pejorative." As a descriptive term, it applies to the activities of judges who, in the course of carrying out their duties, go beyond the strictly judicial function and enter into the political policymak...
).

Where a tort is rooted in common law, then all traditionally recognized damages for that tort may be sued for, whether or not there is mention of those damages
Damages

In law, damages refer to the money paid or awarded to a claimant , pursuer or plaintiff following a successful claim in a lawsuit....
 in the current statutory law
Statutory law

Statutory law or statute law is written law set down by a legislature or other governing authority such as the executive branch of government in response to a perceived need to clarify the functioning of government, improve civil order, to codification existing law, or for an individual or company to obtain special treatment....
. For instance, a person who sustains bodily injury through the negligence
Negligence

Negligence is a Law concept in the common law legal systems usually used to achieve compensation for injuries . Negligence is a type of tort or delict ....
 of another may sue for medical costs, pain, suffering, loss of earnings or earning capacity, mental and/or emotional distress, loss of quality of life, disfigurement and more. These damages need not be set forth in statute as they already exist in the tradition of common law. However, without a wrongful death statute, most of them are extinguished upon death.

In the United States, the power of the federal judiciary to review and invalidate unconstitutional acts of the federal executive branch is stated in the constitution, Article III sections 1 and 2: "The judicial Power of the United States, shall be vested in one supreme Court, and in such inferior Courts as the Congress may from time to time ordain and establish. ... The judicial Power shall extend to all Cases, in Law and Equity, arising under this Constitution, the Laws of the United States, and Treaties made, or which shall be made, under their Authority..." The first famous statement of "the judicial power" was Marbury v. Madison
Marbury v. Madison

Marbury v. Madison, is a landmark case in United States law. It formed thebasis for the exercise of judicial review in the United States under Article Three of the United States Constitution of the United States Constitution....
. Later cases interpreted the "judicial power" of Article III to establish the power of federal courts to consider or overturn any action of congress or of any state that conflicts with the constitution.

Overruling precedent—the limits of stare decisis


Most of the U.S. federal courts of appeal have adopted a rule under which, in the event of any conflict in decisions of panels (most of the courts of appeal almost always sit in panels of three), the earlier panel decision is controlling, and a panel decision may only be overruled by the court of appeals sitting en banc (that is, all active judges of the court) or by a higher court. In these courts, the older decision remains controlling when an issue comes up the third time.

Other courts, for example, the Court of Customs and Patent Appeals and the Supreme Court, always sit en banc, and thus the newer decision controls. These courts essentially overrule all previous cases in each new case, and older cases survive only to the extent they do not conflict with newer cases. The interpretations of these courts - for example, Supreme Court interpretations of the constitution or federal statutes - are stable only so long as the older interpretation maintains the support of a majority of the court. The majority may persist through some combination of belief that the old decision is right, and that it is not sufficiently wrong to be overruled.

In the UK, the Practice Statement of 1966 allows the House of Lords, in certain circumstances, to overrule a previous decision made in the same House.

Contrasting role of treatises and academic writings in common law and civil law systems

The role of the legal academy presents a significant "cultural" difference between common law (connotation 2) and civil law jurisdictions.

In common law jurisdictions, legal treatises compile common law decisions, and state overarching principles that (in the author's opinion) explain the results of the cases. However, in common law jurisdictions, treatises are not the law, and lawyers and judges tend to use these treatises as only "finding aids" to locate the relevant cases. In common law jurisdictions, scholarly work is seldom cited as authority for what the law is. When common law courts rely on scholarly work, it is almost always only for factual findings, policy justification, or the history and evolution of the law
Legal history

Legal history or the history of law is the study of how law has evolved and why it changed. Legal history is closely connected to the development of civilizations and is set in the wider context of social history....
, but the court's legal conclusion is reached through analysis of relevant statutes and common law, seldom scholarly commentary.

In contrast, in civil law jurisdictions, the writings of law professors
Law school

A law school is an institution specializing in legal education....
 are given significant weight by courts. In part, this is because civil law decisions traditionally were very brief, sometimes no more than a paragraph stating who wins and who loses. The rationale has to come from somewhere else, and the academy often filled that role. As civil law court decisions move in the direction of common law reasoning, it is possible that this balance may shift.

Common law as a foundation for commercial economies

This reliance on judicial opinion is a strength of common law systems, and is a significant contributor to the robust commercial systems in the United Kingdom and United States. Because there is common law to give reasonably precise guidance on almost every issue, parties (especially commercial parties) can predict whether a proposed course of action is likely to be lawful or unlawful. This ability to predict gives more freedom to come close to the boundaries of the law. For example, many commercial contracts are more economically efficient, and create greater wealth, because the parties know ahead of time that the proposed arrangement, though perhaps close to the line, is almost certainly legal. Newspapers, taxpayer-funded entities with some religious affiliation, and political parties can obtain fairly clear guidance on the boundaries within which their freedom of expression rights apply.

In contrast, in non-common-law countries, and jurisdictions with very weak respect for precedent (example, the U.S. Patent Office), fine questions of law are redetermined anew each time they arise, making consistency and prediction more difficult. Thus, in jurisdictions that do not have a strong allegiance to a large body of precedent, parties have less a priori guidance and must often leave a bigger "safety margin" of unexploited opportunities, and final determinations are reached only after far larger expenditures on legal fees by the parties.

This is the reason for the frequent choice of the law of the State of New York in commercial contacts. Commercial contracts throughout the world (for example, in commercial contracts in Japan, France and Germany, and from most of the other states of the United States) almost always include a "choice of law clause," and the law chosen is often the law of New York, even where the relationship of the parties and transaction to New York is quite attenuated. Because of its history as the nation's commercial center, New York common law has a depth and predictability not (yet) available in any other jurisdiction. Similarly, corporations are often formed under Delaware corporate law, and contracts relating to corporate law issues (merger and acquisitions of companies, rights of shareholders, etc.) include a Delaware choice of law clause, because of the deep body of law in Delaware on these issues. On the other hand, some other jurisdictions have sufficiently developed bodies of law so that parties have no real motivation to choose the law of a foreign jurisdiction (e.g., the United Kingdom and the state of California), but not yet so fully developed that parties with no relationship to the jurisdiction choose that law. The common theme in each case is that commercial parties seek predictability and simplicity in their contractual relations, and frequently choose the law of a common law jurisdiction with a well-developed body of common law in order to achieve that result.

History of the common law

The term "common law" originally derives from after the Norman Conquest. The "common law" was the law that the whole country had in common, rather than particular tribal laws that might apply between smaller communities. The doctrine of precedent developed under the inquisitorial system
Inquisitorial system

An inquisitorial system is a legal system where the court or a part of the court is actively involved in determining the facts of the case, as opposed to an adversarial system where the role of the court is solely that of an impartial referee between parties....
 in England
England

native_name =|conventional_long_name = England|common_name = England|image_flag = Flag of England.svg|image_coat = England COA.svg|symbol_type = Royal Coat of Arms...
 during the 12th and 13th centuries, as the collective judicial decisions that were based in tradition
Tradition

The word tradition comes from the Latin traditionem, acc. of traditio which means "handing over, passing on", and is used in a number of ways in the English language:...
, custom
Custom (law)

In law, custom can be described as the established patterns of behavior that can be objectively verified within a particular social setting. A claim can be carried out in defense of "what has always been done and accepted by law." Generally, customary law exists where:...
 and precedent
Precedent

In common law Legal systems of the world, a precedent or authority is a legal case establishing a principle or rule that a court or other judicial body adopts when deciding subsequent cases with similar issues or facts....
. Such forms of legal institutions and culture bear resemblance to those which existed historically in societies where precedent and custom have at times played a substantial role in the legal process, including Germanic law and particularly Islamic law
Sharia

Sharia is the body of Islamic religious law. The term means "way" or "path to the water source"; it is the legal framework within which the public and private aspects of life are regulated for those living in a legal system based on Fiqh and for Muslims living outside the domain....
.

The form of reasoning used in common law is known as casuistry
Casuistry

Casuistry is an applied ethics term referring to case-based reasoning. Casuistry is used in juridical and ethical discussions of law and ethics, and often is a critique of principle or rule base reasoning....
 or case-based reasoning
Case-based reasoning

Case-based reasoning , broadly construed, is the process of solving new problems based on the solutions of similar past problems. An auto mechanic who fixes an engine by recalling another automobile that exhibited similar symptoms is using case-based reasoning....
. The common law, as applied in civil cases (as distinct from criminal cases), was devised as a means of compensating
Damages

In law, damages refer to the money paid or awarded to a claimant , pursuer or plaintiff following a successful claim in a lawsuit....
 someone for wrongful acts known as tort
Tort

Tort law is the name given to a body of law that addresses, and provides remedies for, civil wrongs not arising out of contractual obligations. A person who suffers legal damages may be able to use tort law to receive compensation from someone who is liability, or "liable," for those injuries....
s, including both intentional torts and torts caused by negligence
Negligence

Negligence is a Law concept in the common law legal systems usually used to achieve compensation for injuries . Negligence is a type of tort or delict ....
, and as developing the body of law recognizing and regulating contract
Contract

A contract is an exchange of promises between two or more parties to do, or refrain from doing, an act which is enforceable in a court of law. It is a binding legal agreement....
s. The type of procedure practiced in common law courts is known as the adversarial system
Adversarial system

The adversarial system of law is the system of law, generally adopted in common law countries, that relies on the skill of each jurist representing his or her party's positions and involves an impartial person, usually a jury, trying to determine the truth of the case....
; this is also a development of the common law.

Medieval English common law: foundations for 21st century legal systems


Before the Norman conquest in 1066, justice was administered primarily by county courts, presided by the diocesan bishop
Bishop

A bishop is an ordination or consecration member of the Clergy#Christian clergy who is generally entrusted with a position of authority and oversight....
 and the sheriff
Sheriff

A sheriff is in principle a legal official with responsibility for a county. In practice, the specific combination of legal, political, and ceremonial duties of a sheriff varies greatly from country to country....
, exercising both ecclesiastical
Ecclesiastical jurisdiction

Ecclesiastical jurisdiction in its primary sense does not signify jurisdiction over ecclesiastics , but jurisdiction exercised by church leaders over other leaders and over the laity....
 and civil jurisdiction. Trial by jury began in these courts.

In 1154, Henry II
Henry II of England

Henry II, called Curtmantle ruled as King of England , Count of Anjou, Duke of Normandy, Duke of Aquitaine, Duke of Gascony, Count of Nantes, Lord of Ireland and, at various times, controlled parts of Wales, Scotland and western France....
 became the first Plantagenet king. Among many achievements, Henry institutionalized common law by creating a unified system of law "common" to the country through incorporating and elevating local custom to the national, ending local control and peculiarities, eliminating arbitrary remedies and reinstating a jury
Jury

A jury is a sworn body of people convened to render a rationalism, impartiality verdict officially submitted to them by a court, or to set a sentence or judgment....
 system – citizens sworn on oath to investigate reliable criminal accusations and civil claims. The jury reached its verdict
Verdict

In law, a verdict is the formal finding of fact made by a jury on matters or questions submitted to the jury by a judge....
 through evaluating common local knowledge, not necessarily through the presentation of evidence
Evidence (law)

The law of evidence governs the use of testimony and exhibit s or other documentary material which is admissible in a dispute resolution ....
, a distinguishing factor from today's civil and criminal court systems.

Henry II developed the practice of sending judges from his own central court to hear the various disputes throughout the country. His judges would resolve disputes on an ad hoc basis according to what they interpreted the customs to be. The king's judges would then return to London and often discuss their cases and the decisions they made with the other judges. These decisions would be recorded and filed. In time, a rule, known as stare decisis
Stare decisis

Stare decisis is the legal principle under which judges are obligated to follow the precedents established in prior decisions.In the United States, which uses a common law system in its federal courts and most of its state courts, the United States Court of Appeals for the Ninth Circuit has stated:...
 (also commonly known as precedent) developed, which is where a judge would be bound to follow the decision of an earlier judge; he was required to adopt the earlier judge's interpretation of the law and apply the same principles promulgated by that earlier judge if the two cases had similar facts to one another. By this system of precedent, decisions 'stuck' and became ossified, and so the pre-Norman system of disparate local customs was replaced by an elaborate and consistent system of law that was common throughout the whole country, hence the name, "common law."

Henry II's creation of a powerful and unified court system, which curbed somewhat the power of canonical
Canon law

Canon law is internal ecclesiastical law governing the Roman Catholic Church, the Eastern Orthodox Church churches, and the Anglicanism of churches....
 (church) courts, brought him (and England) into conflict with the church, most famously with Thomas Becket
Thomas Becket

Thomas Becket was Archbishop of Canterbury from 1162 to his death. He is venerated as a saint and martyr by both the Roman Catholic Church and the Anglican Communion....
, the Archbishop of Canterbury
Archbishop of Canterbury

The Archbishop of Canterbury is the chief bishop and principal leader of the Church of England, the symbolic head of the worldwide Anglican Communion and the Diocesan Bishop of the Diocese of Canterbury, the Episcopal see that churches must be in communion with in order to be a part of the Anglican Communion....
. Eventually, Becket was murdered inside Canterbury Cathedral by four knights who believed themselves to be acting on Henry's behalf. Whether Henry actually intended to bring about the assassination of Becket is doubtful, but there is no question that at the time of the murder, the two men were embroiled in a bitter dispute regarding the power of Royal Courts to exercise jurisdiction over former clergymen. The murder of the Archbishop gave rise to a wave of popular outrage against the King. Henry was forced to repeal the disputed laws and to abandon his efforts to hold church members accountable for secular crimes (see also Constitutions of Clarendon
Constitutions of Clarendon

The Constitutions of Clarendon were a set of legislative procedures passed by Henry II of England in 1164. The Constitutions were composed of 16 articles and represent an attempt to restrict ecclesiastical privileges and curb the power of the Church courts and the extent of Papal authority in England....
).

Judge-made common law operated as the primary source of law for several hundred years, before Parliament
Parliament of England

The Parliament of England was the legislature of the Kingdom of England. Its roots can be traced back to the early medieval period. In a series of developments, it came increasingly to constrain the power of the King of England, and went on after the Act of Union 1707 to merge with the Parliament of Scotland and form the main basis of the Pa...
 acquired legislative powers to create statutory law
Statutory law

Statutory law or statute law is written law set down by a legislature or other governing authority such as the executive branch of government in response to a perceived need to clarify the functioning of government, improve civil order, to codification existing law, or for an individual or company to obtain special treatment....
. It is important to understand that common law is the older and more traditional source of law, and legislative power is simply a layer applied on top of the older common law foundation. Since the 1100s, courts have had parallel and co-equal authority to make law - "legislating from the bench" is a traditional and essential function of courts, which was carried over into the U.S. system as an essential component of the "judicial power" specified by Article III of the U.S. constitution. There are legitimate debates on how the powers of courts and legislatures should be balanced. However, a view that courts lack law-making power is historically inaccurate and constitutionally unsupportable.

Possible influence of medieval Islamic law


Since the publication of legal scholar John Makdisi's "The Islamic Origins of the Common Law" in the North Carolina Law Review
North Carolina Law Review

The North Carolina Law Review is the flagship law journal of the University of North Carolina School of Law. It is operated out of Chapel Hill, North Carolina. It is currently in its eighty-sixth volume....
, there has been controversy over whether English common law was inspired by medieval Islamic law
Sharia

Sharia is the body of Islamic religious law. The term means "way" or "path to the water source"; it is the legal framework within which the public and private aspects of life are regulated for those living in a legal system based on Fiqh and for Muslims living outside the domain....
. Some scholars have argued that several fundamental common law institutions may have been adapted from similar legal institutions in medieval Islamic law
Sharia

Sharia is the body of Islamic religious law. The term means "way" or "path to the water source"; it is the legal framework within which the public and private aspects of life are regulated for those living in a legal system based on Fiqh and for Muslims living outside the domain....
 and jurisprudence
Fiqh

Fiqh is Islamic jurisprudence. Fiqh is an expansion of the Sharia Islamic law?based directly on the Quran and Sunnah?that complements Shariah with evolving Fatwa/interpretations of Ulema....
, and introduced to England after the Norman conquest of England
Norman conquest of England

The Norman conquest of England began in 1066 AD with the invasion of the Kingdom of England by the troops of William I of England, Duke of Normandy , and his victory at the Battle of Hastings....
 by the Normans
Normans

The Normans were the people who gave their names to Normandy, a region in northern France. They descended from Viking conquerors of the territory and the native population of mostly Frankish and Gallo-Roman stock....
, who conquered and inherited the Islamic legal administration of the Emirate of Sicily
Emirate of Sicily

The Emirate of Sicily was an Caliphate on the island of Sicily from 965 to 1072....
 (see Arab-Norman culture
Arab-Norman culture

The term Arab-Norman culture refers to the interaction of the Arab and Norman societies following the Norman conquest of Sicily from 1061, to around 1250....
). In his 1999 paper, Makdisi drew comparisons between the "royal English contract
Contract

A contract is an exchange of promises between two or more parties to do, or refrain from doing, an act which is enforceable in a court of law. It is a binding legal agreement....
 protected by the action of debt
Debt

Debt is that which is owed; usually referencing assets owed, but the term can cover other obligations. In the case of assets, debt is a means of using future purchasing power in the present before a summation has been earned....
" and the "Islamic Aqd", the "English assize of novel disseisin
Assize of novel disseisin

In English law, the Assize of novel disseisin was an action to recover lands of which the plaintiff had been disseised, or dispossessed. The action became extremely popular due to its expediency....
" and the "Islamic Istihqaq", and the "English jury
Jury

A jury is a sworn body of people convened to render a rationalism, impartiality verdict officially submitted to them by a court, or to set a sentence or judgment....
" and the "Islamic Lafif" in classical Maliki
Maliki

The Maliki madhhab is one of the four madhab of Fiqh or religious law within Sunni Islam. It is the third-largest of the four schools, followed by approximately 15% of Muslims, mostly in North Africa and West Africa....
 jurisprudence, and argued that these institutions were transmitted to England by the Normans, "through the close connection between the Norman kingdoms of Roger II in Sicily
Roger II of Sicily

Roger II was King of Sicily, son of Roger I of Sicily and successor to his brother Simon, Count of Sicily. He began his rule as Count of Sicily in 1105, later became Duke of Apulia , then King of Sicily ....
 — ruling over a conquered Islamic administration — and Henry II in England
Henry II of England

Henry II, called Curtmantle ruled as King of England , Count of Anjou, Duke of Normandy, Duke of Aquitaine, Duke of Gascony, Count of Nantes, Lord of Ireland and, at various times, controlled parts of Wales, Scotland and western France....
." Makdisi also argued that English legal institutions such as "the scholastic method, the license
License

The verb license or grant license means to give permission. The noun license refers to that permission as well as to the document memorializing that permission....
 to teach
Education

File:Inukshuk Monterrey 1.jpgEducation can be seen as a product or a process and considered in a broad sense or a technical sense. According to philosophy of education George F....
," the "law school
Law school

A law school is an institution specializing in legal education....
s known as Inns of Court
Inns of Court

The Inns of Court in London are the professional associations to one of which every Barristers in England and Wales must belong. They have supervisory and disciplinary functions over their members....
" in England (which he asserts are parallel to Madrasas
Madrasah

File:Registan_-_Sherdor_madrasa.jpgMadrasah is the Arabic word for any type of school, whether secular or religious . It is variously Arabic transliteration as madrasah, madarasaa, medresa, madrassa, madraza, madarsa, etc....
 in Islam) and the "European commenda
Limited partnership

A limited partnership is a form of partnership similar to a general partnership, except that in addition to one or more general partnerswhat?? , there are one or more limited partners ....
" (parallel to Islamic Qirad
Qirad

The qirad was one of the basic financial instruments of the Islamic Golden Age. It was an arrangement between one or more investors and an agent where the investors entrusted capital to an agent who then traded with it in hopes of making profit....
) may have also originated from Islamic law. He states that the methodology of legal precedent
Precedent

In common law Legal systems of the world, a precedent or authority is a legal case establishing a principle or rule that a court or other judicial body adopts when deciding subsequent cases with similar issues or facts....
 and reasoning by analogy
Analogy

Analogy is both the cognition process of transferring information from a particular subject to another particular subject , and a language expression corresponding to such a process....
 (Qiyas
Qiyas

In Sunni Fiqh,the qiyas is the process of Analogy in which the teachings of the Quran are compared and contrasted with those of the Hadith, ie....
) are also similar in both the Islamic and common law systems. Makdisi claims these similarities and influences suggest that Islamic law may have laid the foundations for "the common law as an integrated whole".

Other legal scholars such as Monica Gaudiosi, Gamal Moursi Badr and A. Hudson have argued that the English trust
Trust law

In common law legal systems, a trust is an arrangement whereby property is managed by one person for the benefit of another. A trust is created by a settlor, who entrusts some or all of his or her property to people of his choice ....
 and agency
Agency (law)

Agency is an area of commercial law dealing with a contractual or quasi-contractual tripartite, or non-contractual set of relationships when an Agent is authorized to act on behalf of another to create a legal relationship with a Third Party....
 institutions in common law, which were introduced by Crusaders
Crusades

The Crusades were a series of religious war waged by much of Christian Europe against external and internal opponents. Crusades were fought mainly against Muslims, though campaigns were also directed against Paganism Slavic peoples, Jews, Eastern Orthodox Church, Mongols, Catharism, Hussites, Waldensians, Old Prussians, and political enemi...
, may have been adapted from the Islamic Waqf
Waqf

A waqf is an inalienable religious endowment in Islam, typically denoting a building or plot of land for Muslim religious or Charitable trust. It is conceptually similar to the common law trust law....
 and Hawala
Hawala

Hawala is an informal value transfer system based on performance and honor of a huge network of money brokers which are primarily located in the Middle East, Africa and Asia....
 institutions they came across in the Middle East. Dr. Paul Brand also notes parallels between the Waqf and the trusts used to establish Merton College by Walter de Merton
Walter de Merton

Walter de Merton was Bishop of Rochester and founder of Merton College, Oxford....
, who had connections with the Knights Templar
Knights Templar

The Poor Fellow-Soldiers of Christ and of the Temple of Solomon , commonly known as the Knights Templar or the Order of the Temple , were among the most famous of the History of Christianity#Sanctification of knighthood military orders....
. Brand also points out, however, that the Knights Templar were primarily concerned with fighting the Muslims rather than learning from them, making it less likely that they had knowledge of Muslim legal institutions. It is also worth noting that transferring property to another for the "use" of another developed largely in response to the requirements of feudal inheritance law. Trust law, in particular, is a creature of equity
Equity

Equity is the name given to the set of law principles, in jurisdictions following the English law common law tradition, which supplement strict rules of law where their application would operate harshly, so as to achieve what is sometimes referred to as "natural justice"....
, which derived from the parallel jurisdiction of the Lord Chancellor
Lord Chancellor

The Lord High Chancellor of Great Britain, or Lord Chancellor, is a senior and important functionary in the government of the United Kingdom....
 to decide matters independently to the Royal Courts.

Propagation of the common law to the colonies and commonwealth by Reception Statutes

Following the American Revolution
American Revolution

The American Revolution refers to the political upheaval during the last half of the 18th century in which the Thirteen Colonies of North America overthrew the governance of the British Empire and then rejected the British monarchy to become the sovereign United States of America....
, one of the first legislative acts undertaken by each of the newly independent states was to adopt "reception statutes" that gave legal effect to the existing body of English Common Law. Some states enacted reception statutes as legislative statutes, while other states received the English common law through provisions of the state's constitution.

For example, the New York Constitution of 1777 provides that:

Alexander Hamilton
Alexander Hamilton

Alexander Hamilton was the first Secretary of the Treasury, a Founding Fathers of the United States, economist, and political philosopher. He led calls for the Philadelphia Convention, was one of America's first Constitutional lawyers, and cowrote the Federalist Papers, a primary source for Constitutional interpretation....
 emphasized in The Federalist that this New York constitutional provision expressly made the common law subject “to such alterations and provisions as the legislature shall from time to time make concerning the same.” Thus, even when reception was effected by a constitution, the common law was still subject to alteration by a legislature's statute.

One could note a certain irony: one of the first acts of many of the newly-independent states was to adopt the law of the foreign sovereign from whom independence had just been gained. But this is one more demonstration of the point mentioned above ("Common law as a foundation for commercial economies"), that the newly-independent states recognized the importance of a predictable and established body of law to govern the conduct of citizens and businesses, and therefore adopted the richest available source of law.

The Northwest Ordinance
Northwest Ordinance

The Northwest Ordinance was an act of the Congress of the Confederation of the United States. The Ordinance unanimously passed on July 13, 1787....
, which was approved by the Congress of the Confederation
Congress of the Confederation

The Congress of the Confederation or the United States in Congress Assembled was the governing body of the United States of America from March 1, 1781, to March 4, 1789....
 in 1787, guaranteed "judicial proceedings according to the course of the common law." Nathan Dane
Nathan Dane

Nathan Dane was an United States lawyer and statesman who represented Massachusetts in the Congress of the Confederation from 1785 through 1788....
, the primary author of the Northwest Ordinance, viewed this provision as a default mechanism in the event that federal or territorial statutes were silent about a particular matter; he wrote that if "a statute makes an offence, and is silent as to the mode of trial, it shall be by jury, according to the course of the common law.” In effect, the provision operated as a reception statute, giving legal authority to the established common law in the vast territories where no states had yet been established.

Over time, as new states were formed from federal territories, these territorial reception statutes became obsolete and were re-enacted as state law. For example, a reception statute enacted by legislation in the state of Washington requires that "[t]he common law, so far as it is not inconsistent with the Constitution and laws of the United States, or of the state of Washington nor incompatible with the institutions and condition of society in this state, shall be the rule of decision in all the courts of this state." In this way, the common law was eventually incorporated into the legal systems of every state except Louisiana
Louisiana

The State of Louisiana is a U.S. state located in the U.S. Southern States of the United States of America. Its capital is Baton Rouge and largest city is New Orleans....
 (which inherited a civil law system from its French
France

France , officially the French Republic , is a country whose Metropolitan France is located in Western Europe and that also comprises various Overseas departments and territories of France....
 colonizers before the Louisiana Purchase of 1803, adopting a code similar to but not directly based on the Napoleonic Code
Napoleonic code

The Napoleonic Code, or Code Napol?on is the France civil code, established under Napoleon I of France in 1804. It was drafted rapidly by a commission of four eminent jurists and entered into force on March 21, 1804....
 of 1804).

A similar statute exists in Article 8 of the Basic Law of Hong Kong.

1870 through 20th century, and the merger of law and equity


As early as the 15th century, it became the practice that litigants who felt they had been cheated by the common-law system would petition the King in person. For example, they might argue that an award of damages (at common law) was not sufficient redress for a trespasser occupying their land, and instead request that the trespasser be evicted. From this developed the system of equity, administered by the Lord Chancellor
Lord Chancellor

The Lord High Chancellor of Great Britain, or Lord Chancellor, is a senior and important functionary in the government of the United Kingdom....
, in the courts of chancery
Court of equity

A chancery court, equity court or court of equity is a court that is authorized to apply principles of Equity , as opposed to law, to Legal case brought before it....
. By their nature, equity and law were frequently in conflict and litigation would frequently continue for years as one court countermanded the other, even though it was established by the 17th century that equity should prevail. A famous example is the fictional case of Jarndyce and Jarndyce
Jarndyce and Jarndyce

Jarndyce and Jarndyce is a fictional court case in Court of Chancery in the novel Bleak House by Charles Dickens.The case concerns the fate of a large inheritance....
 in Bleak House
Bleak House

Bleak House is the ninth novel by Charles Dickens, published in twenty monthly installments between March 1852 and September 1853. It is held to be one of Dickens's finest and most complete novels, containing one of the most vast, complex and engaging arrays of minor characters and sub-plots in his entire canon....
, by Charles Dickens
Charles Dickens

Charles John Huffam Dickens, Royal Society of Arts , pen-name "Boz", was the most popular English people novelist of the Victorian era, as well as a vigorous Reform movement....
.

In England, courts of law and equity were combined by the Judicature Acts
Judicature Acts

The Judicature Acts are two Acts of Parliament in the United Kingdom, the Supreme Court of Judicature Act 1873 and the Supreme Court of Judicature Act 1875 , which were designed to fuse the administration of the Equity and the common law....
 of 1873 and 1875, with equity being supreme in case of conflict.

In the United States
United States

The United States of America is a Federal government constitutional republic comprising U.S. state and a federal district. The country is situated mostly in central North America, where its Contiguous United States and Washington, D.C., the Capital districts and territories, lie between the Pacific Ocean and Atlantic Oceans, Borders of the U...
, parallel systems of law (providing money damages
Damages

In law, damages refer to the money paid or awarded to a claimant , pursuer or plaintiff following a successful claim in a lawsuit....
, with cases heard by a jury upon either party's request) and equity (fashioning a remedy to fit the situation, including injunctive relief, heard by a judge) survived well into the 20th century. The United States federal courts
United States federal courts

The United States federal courts comprises the Judiciary of government organized under the United States Constitution and Law of the United States of the federal government of the United States....
 procedurally separated law and equity: the same judges could hear either kind of case, but a given case could only pursue causes in law or in equity, and the two kinds of cases proceeded under different procedural rules. This became problematic when a given case required both money damages and injunctive relief. In 1937, the new Federal Rules of Civil Procedure
Federal Rules of Civil Procedure

The Federal Rules of Civil Procedure are rules governing civil procedure in United States district courts, that is, court procedures for civil suits....
 combined law and equity into one form of action, the "civil action." Fed.R.Civ.P. 2. The distinction survives to the extent that issues that were "common law" as of 1791 (the date of adoption of the Seventh Amendment
Seventh Amendment to the United States Constitution

The Seventh Amendment of the United States Constitution, which is part of the United States Bill of Rights, codifies the right to a jury trial in certain civil trials....
) are still subject to the right of either party to request a jury, and "equity" issues are decided by a judge.

Alabama
Alabama

Alabama is a state located in the Southern United States of the United States of America. It is bordered by Tennessee to the north, Georgia to the east, Florida and the Gulf of Mexico to the south, and Mississippi to the west....
, Delaware
Delaware

Delaware is a U.S. state located on the East Coast of the United States in the Mid-Atlantic States region of the United States. The state takes its name from Thomas West, 3rd Baron De La Warr, a British nobleman and Virginia's first colonial governor, after whom Cape Henlopen was originally named....
, Mississippi
Mississippi

Mississippi is a U.S. state located in the Deep South of the United States. Jackson, Mississippi is the state capital and largest city. The state's name comes from the Mississippi River, which flows along its western boundary, and takes its name from the Anishinaabe language word misi-ziibi ....
 and New Jersey
New Jersey

New Jersey is a state in the Mid-Atlantic States and Northeastern United States regions of the United States. It is bordered on the north by New York, on the east by the Hudson River and the Atlantic Ocean, on the southwest by Delaware, and on the west by Pennsylvania....
 still have separate courts of law and equity, for example, the Court of Chancery
Delaware Court of Chancery

The Delaware Court of Chancery is a court of Equity in the United States state of Delaware. It is one of Delaware's three constitutional courts, along with the Delaware Supreme Court and Superior Court of Delaware....
. In many states there are separate divisions for law and equity within one court.

Common law legal systems in the present day

The common law constitutes the basis of the legal systems of: England and Wales
English law

English law is the Legal systems of the world of England and Wales, and is the basis of common law legal systems used in most Commonwealth of Nations countriesand the United States ....
, Northern Ireland
Northern Ireland law

Northernn Ireland law concerns the legal system of Northern Ireland....
, Ireland
Law of the Republic of Ireland

The Republic of Ireland has a common law legal system with a written constitution which provides for a parliamentary democracy based on the British parliamentary system albeit with a popularly elected president, representative democracy, a separation of powers, a developed system of constitutional rights and judicial review....
, federal law in the United States, the law of individual U.S. State
U.S. state

A U.S. state is any one of the 50 state of the United States that share sovereignty with the federal government of the United States . Because of this shared sovereignty, an United States is a citizen both of the federal entity and of his or her state of Domicile ....
s (except Louisiana
Louisiana law

Law in the State of Louisiana is based in part on civil law . Louisiana is the only U.S. state partially based on Law of France and Law of Spain codes and ultimately Roman law, as opposed to English common law....
), federal law in Canada and the individual Provinces (except Quebec civil law
Civil law (legal system)

Civil law is a most prevalent legal system in the modern world and the oldest in human history. It is based on a code, or "a systematic collection of interrelated articles written in a terse, staccato style." The two other major legal systems in the world are common law and Islamic law....
), Australia
Law of Australia

The law of Australia consists of the Australian common law , Federation laws enacted by the Parliament of Australia, and laws enacted by the Parliaments of the Australian states and territories....
 (both federal and individual states), New Zealand
Law of New Zealand

The law of New Zealand can be found in several sources. The primary sources of New Zealand law are List of Statutes of New Zealand and New Zealand Case Law....
, South Africa
Law of South Africa

The Law of South Africa has a 'hybrid' or legal pluralism, made of the interweaving of a number of distinct legal traditions: a civil law system inherited from its Dutch colonisers, a common law system from its English colonisers, and indigenous law, often termed African customary law in South Africa....
, India, Malaysia
Law of Malaysia

The law of Malaysia is mainly based on the common law legal system. This was a direct result of the colonisation of British Malaya, Sarawak, and North Borneo by United Kingdom between early 1800s to 1960s....
, Brunei, Pakistan
Law of Pakistan

The law of Pakistan is the law and legal system existing in the Islamic Republic of Pakistan. Pakistani law is based upon the legal system of British India; thus ultimately on the common law of England and Wales....
, Singapore
Law of Singapore

File:Old Supreme Court Building.JPGThe legal system of Singapore is based on the English common law system. Major areas of law ? particularly administrative law, Contract, Equity and Trust law#United Kingdom, property law and Tort ? are largely Law of Singapore#Judicial precedents, though certain aspects have now been modified to some exte...
, Hong Kong, and many other generally English-speaking countries or Commonwealth
Commonwealth of Nations

The Commonwealth of Nations, also known as the Commonwealth or the British Commonwealth, is an intergovernmental organization of fifty-three independent member states....
 countries (except Malta
Malta

Malta , officially the Republic of Malta , is a densely populated developed country European microstates microstate in the European Union....
 and Scotland
Scotland

conventional_long_name = ScotlandAlba|common_name= Scotland|image_flag = Flag of Scotland.svg|flag_width = 130px...
). Essentially, every country which has been colonised at some time by England, Great Britain
Kingdom of Great Britain

The Kingdom of Great Britain, also known as the United Kingdom of Great Britain, was a country in North-West Europe, in existence from 1707 to 1801....
, or the United Kingdom
United Kingdom

The United Kingdom of Great Britain and Northern Ireland, commonly known as the United Kingdom , the UK or Britain,is a sovereign state located off the northwestern coast of continental Europe....
 uses common law except those that had been formerly colonised by other nations, such as Quebec (which follows French law to some extent), South Africa
South Africa

The Republic of South Africa, also known by Official names of South Africa, is a country located at the southern tip of the continent of Africa....
 and Sri Lanka (which follow Roman Dutch law
Roman Dutch law

Roman Dutch law is a legal system based on Roman law as applied in the Netherlands in the 17th and 18th century. As such, it is a variety of the European continental Civil law or ius commune....
), where the prior civil law system was retained to respect the civil rights of the local colonists. India
India

India, officially the Republic of India , is a country in South Asia. It is the List of countries and outlying territories by total area country by geographical area, the List of countries by population country, and the most populous liberal democracy in the world....
's system of common law is also a mixture of English law
English law

English law is the Legal systems of the world of England and Wales, and is the basis of common law legal systems used in most Commonwealth of Nations countriesand the United States ....
 and the local Hindu law
Hindu law

Hindu law in its current usage refers to the system of personal laws applied to Hindus, especially in India. Modern Hindu law is thus a part of the law of India established by the Constitution of India ....
, except in the state of Goa
Goa

Goa is India's smallest states and territories of India in terms of area and the List of states and territories of India by population. Located on the west coast of India in the region known as the Konkan, it is bounded by the state of Maharashtra to the north, and by Karnataka to the east and south, while the Arabian Sea forms its western...
 which retains the Portuguese civil code. Nicaragua's legal system also is a mixture of the English Common Law and the Civil Law through the influence of British administration of the Eastern half of the country from the mid-1600s until about 1905, the William Walker
William Walker

William Walker may refer to:* William Walker , Australian rules footballer for University* William Walker * William Walker , an early governor of British Guiana...
 period from about 1855 through 1857, USA interventions/occupations during the period from 1909 to 1933, the influence of USA institutions during the Somoza family administrations (1933 through 1979) and the considerable importation between 1979 and the present of USA culture and institutions.

The main alternative to the common law system is the civil law
Civil law (legal system)

Civil law is a most prevalent legal system in the modern world and the oldest in human history. It is based on a code, or "a systematic collection of interrelated articles written in a terse, staccato style." The two other major legal systems in the world are common law and Islamic law....
 system, which is used in Continental Europe
Continental Europe

Continental Europe, also referred to as mainland Europe or simply the Continent, is the continent of Europe, explicitly excluding European islands and, at times, peninsulas....
, and most of the rest of the world. The former Soviet Bloc and other Socialist countries used a Socialist law
Socialist law

Socialist law is the official name of the legal system used in Communist states. It is based on the civil law system, with major modifications and additions from Marxism-Leninism ideology....
 system (some of them use civil law system, for example, Lithuania).

The opposition between civil law and common law legal systems has become increasingly blurred, with the growing importance of jurisprudence
Jurisprudence

Jurisprudence is the theory and philosophy of law. Scholars of jurisprudence, or legal philosophers, hope to obtain a deeper understanding of the nature of law, of legal reasoning, legal systems and of legal institutions....
 (almost like case law
Case law

Case law is the general term for the principles and rules of law set forth in judge legal opinion from courts of law. Case law incorporates courts' decisions from individual legal case and encompasses courts' interpretations of statutes, constitution provisions, administrative law regulations and, in some cases, law originating solely f...
 but in name) in civil law countries, and the growing importance of statute law and codes in common law countries. An example of this is the United States, where matters of criminal law, commercial law (the Uniform Commercial Code
Uniform Commercial Code

File:Uniformcommercialcode.jpgFile:Uniformcommercialcodeconfidentialdrafts.jpgThe Uniform Commercial Code is one of a number of uniform acts that have been promulgated in conjunction with efforts to harmonize the law of sales and other commercial transactions in all 50 U.S....
 in the early 1960s) and procedure (the Federal Rules of Civil Procedure
Federal Rules of Civil Procedure

The Federal Rules of Civil Procedure are rules governing civil procedure in United States district courts, that is, court procedures for civil suits....
 in the 1930s and the Federal Rules of Evidence
Federal Rules of Evidence

The Federal Rules of Evidence govern the admission of facts by which parties in the federal courts of the United States may prove their cases. They were the product of protracted academic, legislative, and judicial examination before they were formally promulgated in 1975....
 in the 1970s) have been codified.

Scotland
Scotland

conventional_long_name = ScotlandAlba|common_name= Scotland|image_flag = Flag of Scotland.svg|flag_width = 130px...
 is often said to use the civil law system but in fact it has a unique system
Scots law

Scots law is a unique Legal systems of the world with an ancient basis in Roman law. Grounded in Codification Civil law dating back to the Corpus Juris Civilis, it also features elements of common law with Legal institutions of Scotland in the High Middle Ages sources....
 that combines elements of an uncodified civil law dating back to the Corpus Juris Civilis
Corpus Juris Civilis

The Corpus Juris Civilis is the modern name for a collection of fundamental works in jurisprudence, issued from 529 to 534 by order of Justinian I, Byzantine Emperors....
 with an element of common law long predating the Treaty of Union with England in 1707 (see Legal institutions of Scotland in the High Middle Ages
Legal institutions of Scotland in the High Middle Ages

Scottish legal institutions in the High Middle Ages are, for the purposes of this article, the informal and formal systems which governed and helped to manage Scottish society between the years 900 and 1288, a period roughly corresponding with the general European era usually called the High Middle Ages....
). Scots common law differs in that the use of precedents is subject to the courts seeking to discover the principle which justifies a law rather than to search for an example as a precedent and that the principles of natural justice
Natural justice

Natural justice or procedural fairness is a legal philosophy used in some jurisdictions in the determination of just, or fairness, processes in law proceedings....
 and fairness have always formed a source of Scots Law. Comparable pluralistic (or 'mixed') legal system
Legal systems of the world

The three major legal systems of the world today consist of civil law , common law and religious law. However, each country often develops variations on each system or incorporates many other features into the system....
s operate in Quebec
Quebec

Quebec , in French language, Qu?bec , is a Provinces and territories of Canada in the Central Canada and Eastern Canada regions of Canada....
, Louisiana
Louisiana

The State of Louisiana is a U.S. state located in the U.S. Southern States of the United States of America. Its capital is Baton Rouge and largest city is New Orleans....
 and South Africa
South Africa

The Republic of South Africa, also known by Official names of South Africa, is a country located at the southern tip of the continent of Africa....
.

Israel has a mixed system of common law and civil law. While Israeli law is undergoing codification, its basic principles resemble those of British and American law, namely: the role of courts in creating the body of law and the authority of the supreme court
Supreme Court of Israel

The Supreme Court is at the head of the court system in the State of Israel. It is the highest judicial instance. The Supreme Court sits in Jerusalem....
 in overturning legislative and executive decisions.

The U.S. state
U.S. state

A U.S. state is any one of the 50 state of the United States that share sovereignty with the federal government of the United States . Because of this shared sovereignty, an United States is a citizen both of the federal entity and of his or her state of Domicile ....
 of California
California

California is a U.S. state on the West Coast of the United States of the United States, along the Pacific Ocean. It is bordered by Oregon to the north, Nevada to the east, Arizona to the southeast, and to the south the Mexico state of Baja California....
 has a system based on common law, but it has codified
Codification

In law, codification is the process of collecting and restating the law of a jurisdiction in certain areas, usually by subject, forming a legal code....
 the law in the manner of the civil law
Civil law (legal system)

Civil law is a most prevalent legal system in the modern world and the oldest in human history. It is based on a code, or "a systematic collection of interrelated articles written in a terse, staccato style." The two other major legal systems in the world are common law and Islamic law....
 jurisdictions. The reason for the enactment of the codes in California in the nineteenth century was to replace a pre-existing system based on Spanish
Spain

Spain or the Kingdom of Spain , is a country located in Southern Europe on the Iberian Peninsula.The Spanish constitution does not establish any official denomination of the country, even though Espa?a , Estado espa?ol and Naci?n espa?ola are used interchangeably....
 civil law with a system based on common law, similar to that in most other states. California and a number of other Western states
Western United States

The Western United States—commonly referred to as the American West or simply The West—traditionally refers to the region comprising the westernmost U.S....
, however, have retained the concept of community property
Community property

Community property is a marital property regime that originated in civil law jurisdictions and is now also found in some common law jurisdictions....
 derived from civil law. The California courts have treated portions of the codes as an extension of the common-law tradition, subject to judicial development in the same manner as judge-made common law. (Most notably, in the case Li v. Yellow Cab Co.
Li v. Yellow Cab Co.

Li v. Yellow Cab Co., Case citation, Case citation , commonly referred to simply as Li, is a California Supreme Court case that judicially embraced comparative negligence in California tort law, rejecting strict contributory negligence....
, 13 Cal.3d 804 (1975), the California Supreme Court adopted the principle of comparative negligence
Comparative negligence

Comparative negligence, or non-absolute contributory negligence outside of the United States, is a partial legal defense that reduces the amount of damages that a plaintiff can recover in a negligence-based claim based upon the degree to which the plaintiff's own negligence contributed to cause the injury....
 in the face of a California Civil Code
California Civil Code

The California Civil Code, more formally known as is a collection of statutes for the California. The code is made up of statutes which govern the general obligations and rights of persons within the jurisdiction of the State of California....
 provision codifying the traditional common-law doctrine of contributory negligence
Contributory negligence

Contributory negligence is a common law defense to a claim based on negligence, an action in tort. It applies to cases where a plaintiff has, through his own negligence, contributed to the harm he suffered....
.)

The state of New York
New York

The State of New York is a U.S. state in the Mid-Atlantic States and Northeastern United States regions of the United States and is the nation's List of U.S....
, which also has a civil law history from its Dutch colonial
Dutch colonization of the Americas

During the 17th century, Netherlands traders established trade posts and plantations throughout the Americas; actual colonization, with Dutch settling in the new lands was not as common as with settlements of other European nations....
 days, also began a codification
Codification

In law, codification is the process of collecting and restating the law of a jurisdiction in certain areas, usually by subject, forming a legal code....
 of its law in the 19th century. The only part of this codification process that was considered complete is known as the Field Code applying to civil procedure. The original colony of New Netherlands was settled by the Dutch and the law was also Dutch. When the English
Kingdom of England

The Kingdom of England was, from 927 to 1707, a state in North-West Europe. The Kingdom of England spanned the southern two-thirds of the island of Great Britain and a number of smaller outlying islands?what is today the legal unit of England and Wales....
 captured pre-existing colonies they continued to allow the local settlers to keep their civil law. However, the Dutch settlers revolted against the English and the colony was recaptured
Second Anglo-Dutch War

The Second Anglo-Dutch War was fought between England and the Dutch Republic from 4 March, 1665 until 31 July, 1667. England tried to end the Dutch domination of world trade....
 by the Dutch. When the English finally regained control of New Netherland they forced, as a punishment unique in the history of the British Empire, the English common law upon all the colonists, including the Dutch. This was problematic, as the patroon
Patroon

A patroon was a landholder with manorial rights to large tracts of land in the 17th century Dutch colony of New Netherland in North America . By charter of 1629, the Dutch West India Company first started to grant this title and land to some of its invested members....
system of land holding, based on the feudal system and civil law, continued to operate in the colony until it was abolished in the mid-nineteenth century. The influence of Roman Dutch law
Roman Dutch law

Roman Dutch law is a legal system based on Roman law as applied in the Netherlands in the 17th and 18th century. As such, it is a variety of the European continental Civil law or ius commune....
 continued in the colony well into the late nineteenth century. The codification of a law of general obligations shows how remnants of the civil law tradition in New York
New York

The State of New York is a U.S. state in the Mid-Atlantic States and Northeastern United States regions of the United States and is the nation's List of U.S....
 continued on from the Dutch days.

The United States
United States

The United States of America is a Federal government constitutional republic comprising U.S. state and a federal district. The country is situated mostly in central North America, where its Contiguous United States and Washington, D.C., the Capital districts and territories, lie between the Pacific Ocean and Atlantic Oceans, Borders of the U...
 federal government (as opposed to the states) has a variant on a common law system. United States federal courts
United States federal courts

The United States federal courts comprises the Judiciary of government organized under the United States Constitution and Law of the United States of the federal government of the United States....
 only act as interpreters of statutes and the constitution (to elaborate and precisely define the broad language, connotation 1(b) above), but, unlike state courts, do not act as an independent source of common law (connotation 1(a) above). Before 1938, the federal courts, like almost all other common law courts, decided the law on any issue where the relevant legislature (either the U.S. Congress or state legislature, depending on the issue), had not acted, by looking to courts in the same system, that is, other federal courts, even on issues of state law, and even where there was no express grant of authority from Congress or the Constitution. In 1938, the U.S. Supreme Court in Erie Railroad Co. v. Tompkins
Erie Railroad Co. v. Tompkins

Erie Railroad Co. v. Tompkins, case citation , was a decision by the Supreme Court of the United States in which the Court held that United States federal courts did not have the power to make up general federal common law when hearing state law claims under diversity jurisdiction....
  (1938), overruled earlier precedent, and held "There is no federal general common law," thus confining the federal courts to act only as interpreters of law originating elsewhere. E.g., Texas Industries v. Radcliff, (without an express grant of statutory authority, federal courts cannot create rules of intuitive justice, for example, a right to contribution from co-conspirators). Post-1938, federal courts deciding issues that arise under state law are required to defer to state court interpretations of state statutes, or reason what a state's highest court would rule if presented with the issue, or to certify the question to the state's highest court for resolution. Later courts have limited Erie slightly, to create a few situations where United States federal courts
United States federal courts

The United States federal courts comprises the Judiciary of government organized under the United States Constitution and Law of the United States of the federal government of the United States....
 are permitted to create federal common law
Federal common law

Federal common law is a term of United States law used to describe common law that is developed by the United States federal courts, instead of by the courts of the various states....
 rules without express statutory authority, for example, where a federal rule of decision is necessary to protect uniquely federal interests. See, e.g., Clearfield Trust Co. v. United States
Clearfield Trust Co. v. United States

Clearfield Trust Co. v. United States, Case citation , was a case in which the Supreme Court of the United States held that federal negotiable instruments were governed by federal law, and thus the federal court had the authority to fashion a federal common law....
, (giving federal courts the authority to fashion common law rules with respect to issues of federal power, in this case negotiable instrument
Negotiable instrument

A negotiable instrument is a specialized type of "contract" for the payment of money that is unconditional and capable of transfer by negotiation....
s backed by the federal government); see also International News Service v. Associated Press
International News Service v. Associated Press

International News Service v. Associated Press, Case citation , is a Supreme Court of the United States decision that upheld the common law rule that there is no copyright in facts and developed the common law doctrine of misappropriation through the tort of unfair competition....
, (1918) (creating a cause of action for misappropriation of "hot news" that lacks any statutory grounding, but that is one of the handful of federal common law actions that survives today). Except on Constitutional issues, Congress is free to legislatively overrule federal courts' common law.

Canada and most of its provinces use a common law system. In the province of Quebec, a civil law tradition is applied except to criminal law.

Works on the common law

Williamblackstone
The definitive historical treatise on the common law is Commentaries on the Laws of England
Commentaries on the Laws of England

The Commentaries on the Laws of England are an influential 18th century treatise on the common law of England by Sir William Blackstone, originally published by the Clarendon Press at Oxford, 1765-1769....
, written by Sir William Blackstone
William Blackstone

Sir William Blackstone was an England jurist and professor who produced the historical and analytic treatise on the common law called Commentaries on the Laws of England, first published in four volumes over 1765–1769....
 and first published in 1765 - 1769. Since 1979, a facsimile edition of that first edition has been available in four paper-bound volumes. Today it has been superseded in the English part of the United Kingdom
United Kingdom

The United Kingdom of Great Britain and Northern Ireland, commonly known as the United Kingdom , the UK or Britain,is a sovereign state located off the northwestern coast of continental Europe....
 by Halsbury's Laws of England
Halsbury's Laws of England

Halsbury's Laws of England is a definitive Encyclopedia treatise on the English Law published by LexisNexis Butterworths. It includes restatements of the common law with remarks to the relevant judgement and the statutory law which has in many cases codification, modified or supplemented common law....
 that covers both common and statutory English law.

While he was still on the Massachusetts Supreme Judicial Court
Massachusetts Supreme Judicial Court

The Massachusetts Supreme Judicial Court is the highest court in the Commonwealth of Massachusetts. The SJC has the distinction of being the oldest continuously functioning appellate court in the Western Hemisphere....
, and before being named to the U.S. Supreme Court, Justice Oliver Wendell Holmes Jr. published a short volume called The Common Law
The Common Law

The Common Law is a book that was written by Oliver Wendell Holmes, Jr. in 1881. Holmes later became an Associate Justice on the Supreme Court of the United States....
 which remains a classic in the field. Unlike Blackstone and the Restatements, Holmes' book only briefly discusses what the law is; rather, Holmes describes the common law process. Law professor John Chipman Gray
John Chipman Gray

John Chipman Gray was an American scholar of property law and professor at Harvard Law School. He also co-founded one of the oldest and most prestigious law firms in the United States, the firm of Ropes & Gray, with law partner John Codman Ropes....
's The Nature and Sources of the Law, an examination and survey of the common law, is also still commonly read in U.S. law schools
Law school in the United States

In the United States, a law school is an institution where students obtain a Professional degree Legal education in the United States after first obtaining an undergraduate degree ....
.

In the United States, Restatements
Restatement of the Law

The Restatements of the Law are treatises on U.S. legal topics published by the American Law Institute, an organization of legal academics and practitioners, as scholarly refinements of black-letter law, to "address uncertainty in the law through a restatement of basic legal subjects that would tell judges and lawyers what the law was."...
 of various subject matter areas (Contracts, Torts, Judgments, etc.), edited by the American Law Institute
American Law Institute

The American Law Institute was established in 1923 to promote the clarification and simplification of American common law and its adaptation to changing social needs....
, collect the common law for the area. The ALI Restatements are often cited by American courts and lawyers for propositions of uncodified common law, and are considered highly-persuasive authority, just below binding precedential decisions. The Corpus Juris Secundum
Corpus Juris Secundum

Corpus Juris Secundum is an encyclopedia of United States law . Its full title is Corpus Juris Secundum: Complete Restatement Of The Entire American Law As Developed By All Reported Cases It contains an alphabetical arrangement of legal topics as developed by U.S....
 is an encyclopedia whose main content is a compendium of the common law and its variations throughout the various state jurisdictions.

Scots common law covers matters including murder and theft, and has sources in custom, in legal writings and previous court decisions. The legal writings used are called Institutional Texts and come mostly from the 17th, 18th and 19th centuries. Examples include Craig, Jus Feudale (1655) and Stair, The Institutions of the Law of Scotland (1681).

See also

  • Doom book
    Doom book

    The Doom Book, Code of Alfred or Legal Code of Aelfred the Great was the code of laws compiled by Alfred the Great from three prior Anglo-Saxons codes, to which he prefixed the Ten Commandments of Moses and incorporated rules of life from the Mosaic Code and the Christian code of ethics....
    , or Code of Alfred the Great
    Alfred the Great

    Alfred the Great , also spelled ?lfred, was king of the southern Anglo-Saxons kingdom of Wessex from 871 to 899. Alfred is noted for his defence of the kingdom against the Danish people Vikings, becoming the only English people king to be awarded the epithet "the Great"....
  • Arraignment
    Arraignment

    Arraignment is a formal reading of a crime complaint in the presence of the defendant to inform him of the charges against him. In response to arraignment, the accused is expected to enter a plea....
  • Civil law (legal system)
    Civil law (legal system)

    Civil law is a most prevalent legal system in the modern world and the oldest in human history. It is based on a code, or "a systematic collection of interrelated articles written in a terse, staccato style." The two other major legal systems in the world are common law and Islamic law....
  • Common-law marriage
    Common-law marriage

    Common-law marriage , sometimes called de facto marriage, informal marriage or marriage by habit and repute, is a form of Interpersonal relationship which is legally recognized in some jurisdictions as a marriage even though no legally recognized marriage ceremony is performed or civil marriage contract is entered into or th...
  • Russian law
    Law of the Russian Federation

    The primary and fundamental statement of laws in the Russia is the Constitution of the Russian Federation....
  • English law
    English law

    English law is the Legal systems of the world of England and Wales, and is the basis of common law legal systems used in most Commonwealth of Nations countriesand the United States ....
  • Grand jury
    Grand jury

    In the common law, a grand jury is a type of jury that determines whether there is enough evidence for a Criminal procedure. Grand juries carry out this duty by examining evidence presented to them by a prosecutor and issuing indictments, or by investigating alleged crimes and issuing Wiktionary:presentments....
  • Jury trial
    Jury trial

    A jury trial is a legal proceeding in which a jury either makes a decision or makes findings of fact which are then applied by a judge. It is be distinguished from a bench trial, in which a judge or panel of judges make all decisions....
  • List of legal topics
    List of legal topics

    Law is a system of rules usually enforced through a set of institutions.For law topics arranged alphabetically, see the table of contents box above....
  • Scots law
    Scots law

    Scots law is a unique Legal systems of the world with an ancient basis in Roman law. Grounded in Codification Civil law dating back to the Corpus Juris Civilis, it also features elements of common law with Legal institutions of Scotland in the High Middle Ages sources....


External links

  • by Oliver Wendell Holmes Jr.
  • - University of Hong Kong Libraries, Digital Initiatives