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 Blösche Hamburg linked Blösche to the atrocities he had committed in Warsaw. Further investigation by the East German police led to a series of findings resulting in his identification. Blösche was arrested on 11 January 1967 and imprisoned in Hohenschönhausen Prison. Blösche was put on trial in Erfurt in April 1969, and was found guilty and sentenced to death. He was executed in Leipzig on 29 July 1969 by a shot through the neck. Josef Blösche Josef Blösche (12 February 1912 – 29 July 1969) was a member of the Nazi Party who served in the SS and SD during World