| Unit Name: | OSN Saturn |
| Type: | Police tactical unit |
| Branch: | Federal Penitentiary Service |
| Dates: | April 29, 1992 |
| Specialization: | Air assault Anti-prison riot Bomb disposal CBRN defense Close-quarters combat Cold-weather warfare Counterterrorism Crowd control Desert warfare Direct action Executive protection Force protection Hostage rescue Law enforcement Manhunt Mountain warfare Parachuting Patrolling PSYWAR Raiding Reconnaissance Riot control Special operations Special reconnaissance Urban warfare |
| Current Commander: | Boris Nikolaev |
| Garrison: | Moscow, Russia |
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".
Current duties:
The Saturn unit participated in the First Chechen War, including the storming of Grozny in December 1994 to January 1995, and in the Second Chechen War.
In summer 2000, Saturn officers protected PACE delegates during their visit to the Chechen Republic.
Saturn participated in the hostage rescue operation in Kapotnya investigative isolation ward No. 9 in September 2006.
It provided protection and convoy support during both Mikhail Khodorkovsky cases.
Saturns provide illegals program agent protection in Moscow.