OSN Saturn (ОСН Сатурн УФСИН России по г. Москве; Otdel Spetsialnogo Naznacheniya Saturn) is the Moscow department of the Federal Penitentiary Service (FSIN) special purpose unit (police tactical unit). Saturn was formed in April 1992 as a part of the Moscow Department of Punishment Execution (UIN) under the Ministry of the Interior. In 2006, the UIN system (including all regional departments and special purpose units) was renamed the Federal Penitentiary Service, and was moved from the jurisdiction of the Ministry of Interior to the Russian Ministry of Justice. The Saturn unit is also often called "Jail Spetsnaz".
Function
Current duties:
Anti-prison riot actions in detention facilities
Control and protect criminals while carrying out legal procedures
Counterterrorism actions in detention facilities
Hostage rescue in detention facilities
Personal security for Ministry of Justice and court officials
Preventing crimes in Moscow detention facilities
Providing security detention facilities at risk of attack
Psychological operations to reduce violence in detention