In 1972 , in the wake of the Munich massacre , it was decided that BRI-PP would , as an additional task , form the nucleus of a police tactical task force known as '' Brigade Anticommando '' ( Counter-commando Brigade ) or BRI-BAC . BRI-BAC , when activated , is reinforced by other specialised units of the Préfecture de police . It has been involved in the resolution of hostage crises from its beginnings in the early 1970s to the Porte de Vincennes siege in January 2015 and the " Bataclan " assault during the November 2015 Paris attacks . In the '' Porte de Vincennes '' case , BRI-BAC and the National Police 's RAID operated together as part of the National Police Intervention Force ( )
Munich massacre
Munich massacre
Research and Intervention Brigade