Special Duties Unit
The PTT, although drawing expertise from the PTF, were still limited in their operational readiness, skills and capability. The hijacking of Singapore Airlines Flight 117 and subsequent successful recovery by the commandos from Singapore Armed Forces' Special Operations Force in 1991 highlighted the need to provide the Singapore Police Force with a dedicated armed response team. With expertise assistance of Hong Kong Police Force's Special Duties Unit, the United Kingdom's SAS, Germany’s GSG 9, France’s GIGN, and America’s Delta Force, the PTT was re-formed into STAR under Special Operations Command and commissioned on 9 November 1993.