In June 1991 both units were rationalised and dissolved with the creation of the Tactical Operations Unit with the aim of resolving high-risk incidents by containment and negotiation, with minimal or judicious use of force to be applied only as a last resort and based on full and careful assessment. Unlike the former SWOS and TRG, the TOU is a completely full-time assignment with a strength of 75 officers and is not responsible for riot control or crowd control situations, which are handled by the Public Order and Riot Squad (PORS). The TOU is available to provide extraordinary assistance to operational police in high-risk incidents such as resolving siege and hostage situations, as well as armed offender situations across the State on a 24-hour basis. The TOU also conducts 'high risk' arrest operations of armed and dangerous offenders such as Ivan Milat, Malcolm Naden, or those involved in firearm incidents such as bikie related shootings. The TOU deals with at least 200 "high-risk" situations, including siege and hostage scenarios, each year across NSW.