NKVD special camps (German: Speziallager) were NKVD-run late and post–World War II internment camps in the Soviet-occupied parts of Germany from May 1945 to January 6, 1950. They were set up by the Soviet Military Administration in Germany (SMAD) and run by the Soviet Ministry of Internal Affairs MVD On 8 August 1948, the camps were made subordinate to the Gulag. Because the camp inmates were permitted no contact with the outside world, the special camps were also known as silence camps (German: Schweigelager).
The Soviet occupation authorities did not admit to the existence of the camps until the Western press led the Soviet Union to respond with a moderate propaganda campaign of their own admitting and defending the camps' existence. No inmates were released before 1948. On January 6, 1950 the camps were handed over to the East German government, who tried the remaining detainees. About 123,000 Germans and 35,000 citizens of other nations were detained, at least 43,000 of whom did not survive.
People were arrested because of alleged ties to the Nazis, because they were hindering the establishment of Stalinism, or at random. The legal basis for the arrests was the Beria-order No. 00315 of 18 April 1945, ordering the internment without prior investigation by the Soviet military advocacy of "active" NSDAP members, heads of Nazi organizations, people maintaining "illegal" print and broadcasting devices or weapon deposits, members of the civil administration, and journalists.
Inmates were classified "sentenced" or "interned" depending on whether they were tried by a Soviet military tribunal (SMT) or not. A decree issued by the Allied Control Council on 30 October 1946 made a trial prior to internment obligatory, yet in November 1946 only 10% of the inmates were "sentenced", this proportion rose to 55% in early 1950.