 This attitude crept down the ranks of the NSO and led to heavy handedness among some of the agency's operatives.A case in point is that of Brigadier Abbas Wali, a former defence attaché to the UK and Adjutant-General of the Nigerian Army.Wali was arrested in Kano by a NSO operative named Bishara and detained at the NSO office for a week without anyone knowing about the arrest including the DG of the agency, Lawal Rafindai and his deputy Albert Horsfall.