This Department shall be responsible for all functions related to the maintenance of law and order, by preventing crime and by enforcing all valid laws and ordinances and including but not limited to those functions specified below:
A. 
The prosecution of all violations of the law within its jurisdiction, including investigation and preparation of evidence as required for such prosecution.
B. 
Control of traffic.
C. 
Study and recommend the elimination of potential hazards to persons and property, including:
(1) 
Maintenance and erection of traffic control systems;
(2) 
Painting of street and crosswalk lanes; and
(3) 
Removal of obstructions to the vision of automobile drivers.
D. 
Provide emergency services as required.