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
Spy Smasher (serial) $156,431 (a $2,749, or 1.8%, overspend). It was the most expensive Republic serial of 1942. "Spy Smasher" was filmed between December 22, 1941 and January 29, 1942. The serial's production number was 1196. Spy Smasher's aircraft from the comic, the Gyrosub, was changed for the serial to be a secret Nazi aircraft called The Bat Plane. Mort Glickman echoed the "V for Victory" theme from Beethoven's 5th symphony in the Spy Smasher theme song. Both pieces of music include the "..._" Morse code for the letter V. Columbia's "The Secret Code", released later in 1942, was patterned after "Spy Smasher".