 Through the 1960s and 1970s the units were known as Emergency Squads becoming known as Country/Regional SWOS in the late 1970s and early 1980s.With the creation of the Tactical Operations Unit in 1991 and dropping of the name SWOS the units became known as State Protection Support Unit.With changes within TOU in 2018 SPSU were renamed TORS, Tactical Operations Regional Support unit.