Another landmark of the district is the prison and investigation complex known as Lefortovo, long used by the KGB and its predecessors. Following the demise of the KGB the Federal Security Service was created, which lost its investigative apparatus in late 1993. As a consequence, in early 1994 Lefortovo was handed over to the MVD (Ministry of Internal Affairs). In 1996 the Lefortovo was taken away from the MVD and returned to its former owner, the Federal Security Service [FSB], a sucessor to the KGB.
Voslensky's most chilling revelation in the 544-page book, Das Geheime wird Offenbar. Moskauer Archive erzaehlen (Secrets Laid Bare. Moscow's Archives Speak Out), by Ukrainian historian Professor Dr. Michael S. Voslensky [who was an interpreter at the Nuremberg Trials and later for the Allied Control Council for Germany] is that in the KGB's notorious Lefortovo prison there was an outsized meat grinder in which the bodies of victims were ground to a pulp and sluiced into the city's sewers.