Sharashkas were secret research and development laboratories operating from 1930 to the 1950s within the Soviet Gulag labor camp system, as well as in other facilities under the supervision of the Soviet secret service. Formally various secret R&D facilities were called "special design bureau" Russian: особое конструкторское бюро, ОКБ and similar terms. Etymologically, the word sharashka derives from a Russian slang expression sharashkina kontora,, an ironic, derogatory term to denote a poorly-organized, impromptu, or bluffing organization, which in its turn comes from the criminal argot term sharaga (шарага) for a band of thieves, hoodlums, etc.)

Lavrentiy Pavlovich Beria was a Georgian Bolshevik and Soviet politician, Marshal of the Soviet Union and its state security administrator and chief, and chief of the People's Commissariat for Internal Affairs (NKVD) under Joseph Stalin during the Second World War, and promoted to deputy premier under Stalin in 1941. He officially joined the Politburo in 1946. Beria was the longest-serving and most influential of Stalin's secret police chiefs, wielding his most substantial influence during and after the war. Following the Soviet invasion of Poland in 1939, he was responsible for organizing purges such as the Katyn massacre of 22,000 Polish officers and officials.