The Departamento de Operações de Informações - Centro de Operações de Defesa Interna (English: Department of Information Operations - Center for Internal Defense Operations) was the Brazilian intelligence and political repression agency during the military dictorship (1964–1985). This period started on March 31, 1964 with the removal of the civilian government by military forces and ended in 1984. DOI-CODI was responsible for suppressing internal dissent against the regime. It acted as a political police, using torture and other counter-insurgency methods, with a focus on anti-communism. Several political activists, intellectuals, artists, college students and journalists were interrogated and at times tortured by the DOI-CODI throughout its existence.