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 Kieffer to prisoners. During his cross-examination after the war by Vera Atkins from SOE, he began to cry at his interrogator's description of the death of Noor Inayat Khan at Dachau concentration camp. Atkins replied, "Kieffer, if one of us is going to cry it is going to be me. You will please stop this comedy." Kieffer was subsequently charged with war crimes. After being found guilty at his trial he was sentenced to death by hanging and executed on the gallows at by Albert Pierrepoint. Josef Kieffer Waffen SS Sturmbannführer (Major) Hans Josef Kieffer (4 December 1900 – 26 June