Richard Sorge - Arrests and Trials

Arrests and Trials

As the war progressed, it was becoming increasingly dangerous for Sorge to continue his spying work. Nevertheless, in view of the critical juncture of the war, he continued spying. However, due to the increasing volume of radio traffic from one-time pads (used by the Soviets), the Japanese began to suspect a spy ring operating. The Japanese secret service had already intercepted many of his messages and begun to close in. Ozaki was arrested on October 14, 1941, and interrogated.

Sorge was arrested on October 18, 1941, in Tokyo. German ambassador Eugen Ott heard of Sorge's arrest the next day from a brief memo notifying him that Sorge had been arrested "on suspicion of espionage" together with Max Clausen. Ott was both surprised and outraged, and assumed it was a case of "Japanese espionage hysteria". He thought that Sorge had been discovered passing secret information on the Japan-US negotiations to the German embassy, and also that the arrest could be due to anti-German elements in the Japanese government. It was not until a few months later that Japanese authorities announced that Sorge had in fact been indicted as a Soviet spy.

Initially, the Japanese believed that, due to his Nazi party membership and German ties, Sorge was an Abwehr agent. However, the Abwehr denied that he was one of their agents. Even under torture, he denied all ties with the Soviets. The Japanese made three overtures to the Soviets, offering to trade Sorge for one of their own spies. However, the Soviets declined all the offers, maintaining that Sorge was unknown to them. He was incarcerated in Sugamo Prison.