The Finnish Security Intelligence Service is established to remove communist leadership from its predecessor, the State Police.

The Finnish Security Intelligence Service (Finnish: Suojelupoliisi, Supo; Swedish: Skyddspolisen), formerly the Finnish Security Police, is the security and intelligence agency of Finland in charge of national security, such as counter-intelligence and counter-terrorism, under the jurisdiction of the Ministry of the Interior. The agency had a distinct role during the Cold War in monitoring communists as well as in the balance between Finnish independence and Soviet appeasement. After the 1990s, Supo has focused more on countering terrorism and in the 2010s, on preventing hybrid operations.