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 Bryks Josef Bryks Josef Bryks, MBE, (; 18 March 1916, Lašťany – 11 August 1957, Ostrov nad Ohří) was a Czechoslovak cavalryman and fighter pilot who escaped the German occupation of Czechoslovakia and became a Flight Lieutenant in the Royal Air Force Volunteer Reserve. He flew a Hawker Hurricane with No. 242 Squadron RAF until he was shot down over German-occupied France in 1941. Bryks was a prisoner of war for four years, in which time he escaped and was recaptured three times. After his third escape he served in the Polish Home Army in Warsaw, where he helped to get