Kastner trial

The Kastner trial was a libel case in Israel that involved the prosecution of Malchiel Gruenwald for libeling Rezso Kastner, a Hungarian Jewish leader who had negotiated with the Nazis during World War II. The trial centered on allegations that Kastner had collaborated with the Nazis, and Gruenwald's writings were deemed defamatory. The case ultimately led to a significant change in Israel's libel laws.