Josef Jakobs SW3, on 4–5 August 1941. The trial was held "in camera" because the German agent had been apprehended in a highly classified intelligence operation known as the Double Cross System. The British were aware that Jakobs was coming because his arrival information had been passed on to MI5 by the Welsh nationalist and "Abwehr" double agent Arthur Owens. After a two-day trial which involved hearing the testimony of eight witnesses, Jakobs was found guilty of spying and sentenced to death. Jakobs's execution took place at the miniature rifle range in the grounds of the Tower of London on 15 August
Josef Kollmer Josef Kollmer Josef Kollmer (26 February 1901 – 28 January 1948) was a German war criminal, SS-"Obersturmführer" at Auschwitz. He was prosecuted at the Auschwitz Trial. Born in Händlern, Bavaria, Kollmer was a farmer by trade. He became a member of the SS on January 1, 1935 after having previously spent several years in the German police force. He joined the Nazi party in May 1937. In October 1941 he was drafted into the Waffen-SS and was assigned to Auschwitz, where he commanded various guard companies until October 1943. He then temporarily transferred to Mittelbau-Dora concentration camp, but returned to