Arma Dei Carabinieri - Raggruppamento Operativo Speciale

The Raggruppamento Operativo Speciale (ROS), or Special Operations Group, is part of the Italian Carabinieri. Founded on 3 December 1990 to coordinate investigative activities against organized crime, it now the main investigative arm of the Carabinieri which deals with organized crime and terrorism. The ROS reports directly to the Carabinieri General Command.

Among the investigative methods used by the ROS, one of most effective and dangerous for the investigator is the undercover infiltration of gangs used in investigations into narcotics, kidnapping, money laundering, and the smuggling of arms, ammunition and explosives.