§ 14-102 Composition of force. Until otherwise provided by the mayor, upon the recommendation of the commissioner, the police force in the police department, shall consist of the following ranks of members, to wit:

1. Captains of police, not exceeding in number one to each fifty of the total number of police officers, in addition to the number detailed to act as inspectors;

2. Lieutenants of police, not exceeding four in number to each fifty of the total number of police officers;

3. Sergeants not exceeding six in number to each fifty police officers;

4. Surgeons of police, not exceeding forty in number, one of whom shall be chief surgeon;

5. A veterinarian;

6. Police officers to the number of seven thousand eight hundred thirty-nine.