Properly called Regimental Provost Staff in the United Kingdom, most Army battalions and regiments and the Royal Marines Commandos have an RP section, usually headed by the Regimental Provost Sergeant, who operates under the authority of the Regimental Sergeant Major (RSM). They are normally responsible for the maintenance of good order and military discipline, with all criminal offences being passed to the specialists of the Royal Military Police.
Members of a regiment's Provost Section can be identified by the brassards they wear, which carry the letters "RP". Unlike Service Police, RPs carry no warrant card and have no powers of arrest greater than those of citizen's arrest. They are not police officers and serve no policing function.
The roles of the Regimental Policemen (RP) in the Singapore Armed Forces are similar, in that they too enforce discipline and are responsible for the security of the base they are assigned to. The Regimental Policemen that once used to protect all camps and bases have been progressively replaced by Security Troopers. As of April 2011, all Regimental Policemen have been replaced by Security Troopers. These Security Troopers are better trained than the original RPs. Security Troopers are Operational Combat Soldiers with special Security Training. They are usually Full-time National Servicemen.
All Security Troopers are centrally trained and qualified by 8th Battalion, Singapore Infantry Regiment before being posted to the Army, Air Force, Navy and other units. Army and Air Force Security Troopers (ST) maintain the name Security Troopers. However, Security Troopers posted to the Navy are called Sea Soldiers to reflect the role they perform. At the core, whether they are posted to the Army, Air Force or Navy, all these soldiers are Security Troopers. All Security Troopers undergo eleven weeks of training before they are qualified as Security Troopers. It may be of interest to note that Regimental Police used to be trained at the Military Police Training School (MPTS) & 2 PDF Training Centre before 8 SIR took on the role to raise Security Troopers for the SAF.
The working hours vary depending to operational requirements. They are easily identified by a black brassard with 'SECURITY TROOPER' in orange wording worn on their right arm.