National Security Organization

The National Security Organization (NSO) of Nigeria, or Nigerian Security Organization, was created under Decree number 27 of 1976 by the military regime of General Olusegun Obasanjo, after the failed Dimka coup which claimed the life of former Head of State General Murtala Mohammed. The NSO was given a mandate of co-ordinating Internal Security, Foreign Intelligence and counterintelligence activities.

Source: Wikipedia — National Security Organization (CC BY-SA 4.0)