The Special Task Force owes its origin to the Fox Street seige, which occurred on 28 April 1974. As a result of this incident, it was decided to establish a unit that would specialize in the handling of hostage and similar situations. The Special Task Force was established early in 1976.

At present, applicants must be permanent members of the South African Police Service, at least 21 years of age, have served at least two years in the police service and be physically and mentally stable to undergo rigorous training. Such an applicant must also be mature, have sound judgement and display definite leadership qualities.

As members of this unit are exposed to great risks as a result of its prescribed activities and duties, it was decided that it would consist of volunteers only. Members wishing to join this unit must meet certain requirements, pass an extremely strict screening test and undergo specialized training