composition and functions shall be prescribed by the National Security Act. The National Security Service 151 (1) There shall be established a National Security Service that shall be charged with the external and internal security of the country; its mission, mandate, functions, terms and conditions of service shall be prescribed by the National Security Act. (2) The National Security Service shall be representative of the people of the Sudan; Southern Sudan shall, in particular, be equitably represented therein. (3) The National Security Service shall be professional and its mandate shall focus on information gathering, analysis and advice to the appropriate authorities. (4) There shall be established National Security Service offices throughout the Sudan. (5) The National Security Service shall be under the supervision of the Presidency. 60