Security and Intelligence Division

The Security and Intelligence Division (SID) is the foreign intelligence service of Singapore under the purview of the Ministry of Defence (MINDEF), tasked to gather, process, and analyse information from around the world that concerns the national security and national interests of Singapore.

Although the SID falls under the purview of MINDEF, it is autonomous within the ministry. The SID is also highly secretive; most of its personnel are only known to the country's top government officials.

The SID is led by a director, who holds the rank equivalent to a permanent secretary, and reports directly to the Prime Minister's Office (PMO). Prior to the 1970s, the director reported directly to the Minister for Defence.