NO. 28 OF 2012 National Intelligence Service [Rev. 2012] to prevent unauthorized access to the premises of the Service; and (viii) to prevent interference with any installations of the Service; and (o) perform any other lawful function as may be assigned by the President or the Cabinet Secretary or any other written law. (vii) (2) The Director-General shall have all the powers necessary or expedient for the performance of his or her functions under the Constitution, this Act or any other written law. (3) The Director-General may, in writing, delegate any power or assign any function conferred upon him or her under this Act or any other written law to a member of the Service. (4) The delegation of a power or assignment of a function under subsection (3) shall not prevent the Director-General from exercising the power or discharging the function in question in person. (5) Subject to subsection (3) the Director-General may— (a) impose such conditions as are necessary for the performance of the function or exercise of the power; or (b) withdraw any decision made by the person to whom the power or function had been delegated. 10. Tenure of office (1) The Director-General shall hold office for a term of five years and may be eligible for re- appointment for one further term. (2) Notwithstanding subsection (1) the President shall remove the DirectorGeneral from office on the following grounds— (a) violation of the Constitution, this Act or any other written law including contravention of Chapter Six; (b) gross misconduct whether in the performance of the office holders functions or otherwise; (c) if the Director-General is convicted of an offence; (d) physical or mental incapacity to perform the function of office; (e) incompetence; (f) partisan political activity; or (g) bankruptcy. (3) Before the removal of the Director-General under paragraphs (a), (b), (d), (e) and (f) of subsection (2), the President shall appoint a Tribunal in accordance with the Second Schedule and refer the question of removal of the Director-General to the Tribunal, which shall— (a) investigate the circumstances giving rise to the proposed removal; and (b) make recommendations to the President. [Issue 1] 16