A. It shall be the duty of the Haines police department and such officers as are assigned by the chief of police to enforce all traffic regulations and all of the state motor vehicle laws applicable to street and highway traffic within the townsite service area, to make arrests for traffic violations, to investigate accidents, and to carry out those duties especially imposed upon the department by this title.

B. Officers of the police department and such officers as are assigned by the chief of police are hereby authorized to direct all traffic by voice, hand, or signal in conformance with traffic laws; provided, that, in the event of a fire or other emergency or to expedite traffic or safeguard pedestrians, officers of the police department may direct traffic as conditions may require notwithstanding the provisions of the traffic laws.

C. Officers of the fire department, when at the scene of a fire or when operating firefighting apparatus on public streets, may direct or assist the police in directing traffic thereat or in the immediate vicinity.