§ 12-201.  Duties of Police Department.
   (1)   The Police Department shall:
      (a)   Enforce the provisions of this Title and of The Vehicle Code applicable to street traffic in this City, investigate accidents, cooperate with the Department and other City departments and agencies in the administration of the traffic laws and develop ways and means to improve traffic conditions;
      (b)   Cooperate with the Department in conducting studies of highway accident locations and determining remedial measures;
      (c)   Maintain a suitable system of filing traffic accident reports. A record of each accident shall be filed alphabetically by location, and shall be available solely for the use and information of the Police Department and the Department;
      (d)   Maintain a record, filed alphabetically under the name of the operator concerned, of all traffic accidents, which shall be available solely for the use and information of the Police Department and the Department.