Perfidy is a book written by Ben Hecht

Ben Hecht

Ben Hecht was an American screenwriter, director, producer, playwright, and novelist. Called "the Shakespeare of Hollywood", he received screen credits, alone or in collaboration, for the stories or screenplays of some 70 films and as a prolific storyteller, authored 35 books and created some of...

 in 1961. The book details the events surrounding the Rudolf Kastner

Rudolf Kastner

Rudolf Israel Kastner was a Jewish-Hungarian journalist and lawyer who became known for facilitating the departure of Jews out of Nazi-occupied Hungary during the Holocaust...

 trial.

The book draws heavily on transcripts from the trial, and draws the conclusion that Kastner collaborated with the Nazis and then later lied about it under oath. One of the supporting facts presented is that, in the Supreme Court appeal of the original verdict implicating Kastner, all five Supreme Court Judges upheld Judge Halevi's verdict on the "criminal and perjurious way" in which Kastner after the war had saved Nazi war criminal Kurt Becher

Kurt Becher

Kurt Andreas Ernst Becher was an SS Untersturmführer and later a Standartenführer who was Commissar of all German concentration camps, and Chief of the Economic Department of the SS Command in Hungary during the German occupation in 1944.- SS Background :Becher was born to a wealthy family...

. Judge Silberg summed up the Supreme Court finding on this point:
"Greenwald has proven beyond any reasonable doubt this grave charge."

The book has been denounced by the Israeli establishment.