"Ex Post Facto" is the eighth episode of Star Trek: Voyager. The episode's title is Latin for "from a thing done afterward", and refers to the concept of Ex post facto law.... , the eighth episode of Star Trek: Voyager
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.... , a law that retroactively changes the legal consequences of acts committed prior to the enactment of the law
