Subject to the provisions of the Charter, the rules of the Police Department, and the instruction of the Board of Police Commissioners, the Executive Director of the Board of Police Commissioners shall have the power and duty to:
(a) administer the affairs of the Board of Police Commissioners as its chief administrative officer;
(b) appoint, discharge, discipline, transfer and issue instructions to employees appointed as independent staff of the Board of Police Commissioners, except for employees under the direction of the Inspector General, all subject to the civil service provisions of Article X of the Charter;
(c) expend the funds designated by budgetary appropriations or appropriations made after adoption of the budget for expenditure by the Board of Police Commissioners or its staff, in accordance with the provisions of those appropriations;
(d) recommend to the Board of Police Commissioners prior to the beginning of each fiscal year a budget covering the anticipated revenues and expenditures of the board and its staff, conforming so far as practicable to the forms and dates provided in the Charter in relation to the general City budget;
(e) certify the expenditures of the Board of Police Commissioners and its staff to the chief accounting employee; and
(f) exercise further powers in the administration of the Board of Police Commissioners conferred upon the Executive Director by the board.
The authority of the Executive Director shall not extend to authority over the Chief of Police nor encroach upon the authority of the Chief of Police to administer the affairs of the Police Department as its general manager and chief administrative officer.