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 Balabán the second in February 1941 in the Berlin-Anhalt rail station, which was intended to kill Heinrich Himmler. On 22 April 1941 the Gestapo captured Balabán in Prague after a brief gunfight. In spite of being tortured he didn't disclose any information about the resistance. After Reinhard Heydrich assumed the position of Deputy Reichsprotektor (September 1941), martial law was established and Balabán was sentenced to death. He was executed in Ruzyně Prison in Prague on 3 October. Josef Balabán Josef Balabán (5 June 1894 – 3 October 1941) was a Czechoslovak soldier known for his involvement in the resistance movement against