The Mayor and Chief of Police are hereby authorized and required to make all needful rules and regulations not inconsistent with the laws of the state or the ordinances of the city, for the government and control of the Police Department, with the view, to making this Department, and all officers and members appointed under it, efficient, vigilant, prompt and useful to the city. All rules and regulations made in pursuance hereof shall be in writing, signed by the Mayor, and filed in the office of the City Clerk, and shall be binding on all persons connected with the Police Department.
(1960 Code, § 4.04)