In former Czechoslovakia, State Security () or StB / ŠtB, was a plainclothes Secret police force from 1945 to its dissolution in 1990. Serving as an intelligence and counter-intelligence agency, any activity that could possibly be considered anti-communist fell under the purview of StB. History From its establishment onward June 30, 1945, the StB was bound to and controlled by the Communist Party of Czechoslovakia. The communists used the StB as an instrument of power and repression: the S… (More on Stb)