Boris Kumm

In 1923, he joined the Communist Party of Estonia (EKP), and was elected to the Riigikogu, the Estonian parliament.

After the EKP was banned in 1924, Kumm was arrested and sentenced to 15 years' hard labour.

Kumm served as People's Commissar for Internal Affairs of the Estonian SSR in 1940–1941 and People's Commissar for State Security of the Estonian SSR in 1941.

When Nazi Germany occupied Estonia in 1941, Kumm fled to Moscow, where he continued working for the People's Commissariat for State Security.

He returned to Estonia after the Red Army liberated it from German occupation in 1944.