(A)   Every patrolman, in carrying out the functions of the Police Department, namely, the preservation of the public peace, the protection of life and property, the prevention of crime, the arrest of violators of the laws, and the proper enforcement of all laws and ordinances, shall consistently be diligent in his efforts to accomplish that end intelligently and efficiently, and shall hold himself in readiness at all times to answer the calls, and obey the orders of his supervisor, and shall be accountable to his superior officer for the general conditions of the city during the hours assigned to him.
   (B)   No person shall be appointed a member of the Police Department unless he is at least twenty-one (21) years of age, a man of sobriety and integrity, is and has been an orderly, law abiding citizen, and has passed an examination to determine his physical fitness.
   (C)   All original appointments shall be for a probationary period of twelve (12) months.  Continuance in service shall be dependent upon the conduct of the appointee and his fitness for the performance of the duties to which he is assigned as indicated by the quality of his work and the reports and recommendations of his superior officers.  If, during the probationary period, the appointee proves unfit or not suitable for police work, he will be dismissed from the service by the Chief of Police, subject to the approval of the City Manager, and shall not be entitled to appeal the dismissal.
   (D)   All patrolmen, unless otherwise ordered, shall wear regulation uniforms in keeping with the specifications, including materials, designated and adopted by the department and approved by the Board of Commissioners.
   (E)   All officers operating patrol cars shall use reasonable care in the use of the cars and shall keep the cars in clean condition, properly fueled, and ready for changing shifts.
   (F)   The City Manager may, at any reasonable time, require any officer to submit to a medical examination at the expense of the city.
(1976 Code, App. F, § 2)