Department of State Services (DSS)

The Department of State Services (DSS) is Nigeria's primary domestic intelligence and security agency, responsible for internal security, counterintelligence, and the protection of the constitutional order. Operating under the National Security Adviser, the DSS gathers and analyses domestic intelligence, investigates threats to national security, and protects designated government officials. The agency was established as part of the reorganisation of the Nigerian Security Organisation (NSO) in 1986.