In October 1983, Israel issued an extradition request for Demjanjuk to stand trial on Israeli soil under the Nazis and Nazi Collaborators (Punishment) Law of 1950 for crimes allegedly committed at Treblinka. Demjanjuk appealed his extradition with the case heard on 8 July 1985. Demjanjuk's defense attorneys claimed that the evidence against him had been manufactured by the KGB, that Demjanjuk was never at Treblinka, and that the court had no authority to consider Israel's request for extradition. The appeals court found probable cause that Demjanjuk "committed murders of uncounted numbers of prisoners" and allowed the extradition to take place. The United States Supreme Court declined to hear Demjanjuk's appeal on 25 February 1986, allowing the extradition to move forward. Demjanjuk was deported to Israel on 28 February 1986.