The Office of National Security (ONS) was established by an Act of Parliament – The National Security and Central Intelligence Act (2002) by the end of Sierra Leone’s 1991- 2002 rebel war. It was to serve as the secretariat of the National Security Council (NSC) to fulfil an urgent demand for a high-level authority to provide for the coordination and oversight of the security sector, the object for which the NSC was established to provide the highest forum for the consideration and determination of matters relating to the security of Sierra Leone.