A.   The board of police commissioners shall have charge of all appointments to and dismissals from the police department, except in the case of the chief of police, and shall conduct and hold all entrance and promotional examinations in the manner required by law. (1978 Code § 2-2-2)
   B.   No member of the police department shall be removed or discharged or suspended except by the board of police commissioners after a hearing on written charges, as provided by law. (1978 Code § 2-2-3)