Soviet Union. Komitet gosudarstvennoĭ bezopasnosti

Central archives of the Federal Security Services (formerly KGB) of the Russian Federation records relating to war crime trials in the Soviet Union, 1939-1992 (bulk dates 1945-1947)

Estonian State Archives of the Former Estonian KGB (State Security Committee) records relating to war crime investigations and trials in Estonia, 1940-1987

Latvian Central State Historical Archive (Riga) records, 1941-1945

Latvian state archives of the former Latvian KGB (State Security Committee) records from Fond 1986 relating to war crimes investigations and trials in Latvia, 1941-1995 (bulk 1944-1966)