One of Cheka operations...

The All-Russian Extraordinary Commission, commonly known as "Cheka", was the first of a succession of Soviet secret-police organizations. Established on November 5 1917 by the Sovnarkom, it came under the leadership of Felix Dzerzhinsky, a Polish aristocrat-turned-communist. On January 14, 1918, Sovnarkom ordered Dzerzhinsky to organize teams of "energetic and ideological" sailors to combat speculation. By the spring of 1918, the commission had several teams: in addition to the Sveaborge team, it had an intelligence team, a team of sailors, and a strike team. Through the winter of 1917–1918, all activities of Cheka were centralized mainly in the city of Petrograd. It was one of several other commissions in the country which fought against counterrevolution, speculation, banditry, and other activities perceived as crimes.