outside the Istana on the first Sunday of every month. The Silent Precision Drill Squad (SPDS), which is under the LEEC, performs silent precision drills at the National Day Parade and international military tattoos. The LEEC also has a Special Security and Protection (SSP) Platoon that provides close protection cover for key appointment holders in the SAF and Ministry of Defence (MINDEF). The Support Company has a Traffic Platoon that performs escort duties and conducts patrols to ensure that SAF personnel driving military vehicles comply with traffic regulations. It also has a Security Operations Detachment that works closely with the Singapore Police Force to arrest SAF personnel who have deserted or gone AWOL or committed other military offences. It has an Escort and Processing Office Platoon in charge of registering and detaining suspects in holding cells at Mowbray Camp. The MWDU is in charge of training sniffer dogs and guard dogs and carrying out operations involving these dogs. Security Troopers Security Troopers from the 8th Battalion, Singapore Infantry Regiment (8 SIR) provide security coverage at SAF camps, bases and military installations around Singapore, while Security Troopers from the 9th Battalion, Singapore Infantry Regiment (9 SIR) provide security coverage at key installations such as Changi Airport, Sembawang Wharves and Jurong Island. The SAF Military Police Command also provides security coverage at the Ministry of Defence (MINDEF) headquarters at Bukit Gombak. SAF Detention Barracks The SAF Military Police Command operates the SAF Detention Barracks, currently the only military prison in Singapore. Special Investigation Branch (SIB) The Special Investigation Branch (SIB) carries out criminal investigations in the SAF and MINDEF for military-related offences, including drug offences, white-collar crimes and cybercrimes. Training The Island Defence Training Institute (IDTI) conducts training for both active and reservist Military Police personnel and Security Troopers. The Security and Policing Leadership School (SPLS), one of four schools in IDTI, conducts a 13-week training course for Military Police specialist (non-commissioned officer) cadets. Uniforms SAF Military Police wear different uniforms for specific duties or occasions. Their Number 3 uniform consists of a olive drab uniform shirt, olive drab pants, a pair of combat boots, a white stable belt, a white lanyard with a whistle, and a white helmet with the letters "MP" in red, or a dark blue beret. They also wear the pixelised camouflage Number 4 uniform with a black leather brassard on the right arm bearing the letters "MP"