investigate other criminal cases in which corruption may be involved. Under the purview of the Prime Minister's Office, the CPIB is headed by a director who reports directly to the Prime Minister. A CPIB officer has the powers of arrest under Section 15 of the Prevention of Corruption Act 1960, and may also investigate any other offence under written law which may be uncovered during investigations under Section 17 of the same act. A CPIB officer may also be armed under Section 87 of the Guns, Explosives and Weapons Control Act 2021 and Section 15A of the Prevention of Corruption Act 1960. Internal Security Department The Internal Security Department (ISD) is a domestic intelligence agency of the Ministry of Home Affairs founded in 1966. It has the utmost right to detain without trial individuals suspected to be a threat to national security. The stated mission is to confront and address security threats, including foreign subversion and espionage. The ISD also monitors and addresses the prevention of racial tension which might affect the public peace, surveillance, apprehension of militants and protection of Singapore's national borders. Under Section 65 of the Police Force Act 2004, an intelligence officer has the powers of a police officer. Under Section 87 of the Guns, Explosives and Weapons Control Act 2021, an intelligence officer may be armed. Security and Intelligence Division The Security and Intelligence Division (SID) is a foreign intelligence agency under the Ministry of Defence founded in 1966 alongside the ISD. Under Section 65 of the Police Force Act 2004, an intelligence officer has the powers of a police officer. Under Section 87 of the Guns, Explosives and Weapons Control Act 2021, an intelligence officer may be armed. Singapore Armed Forces Military Police Command The Singapore Armed Forces Military Police Command (SAFMPC) is the military police formation of the Singapore Armed Forces (SAF), founded in 1966. Central Narcotics Bureau The Central Narcotics Bureau (CNB) is in charge of enforcement of drug law and drug education. It was founded in 1971. A CNB officer has the powers of a police officer and may be armed under Section 32 and 32A respectively of the Misuse of Drugs Act 1973. Singapore Civil Defence Force Provost Unit The Singapore Civil Defence Force Provost Unit (PU) is responsible for enforcement and investigation of all service offences as found in the Civil Defence Act as well as the administration of