It shall be the duty of the officers of the Police Department of this Town to enforce the provisions of the Traffic Code and all state laws applicable to street traffic in this Town. Officers of the Police Department are authorized to direct all traffic either in person or by means of visible or audible signal in conformance with all traffic laws and ordinances; provided that in the event of a fire or other emergency or to expedite traffic or safeguard pedestrians, officers of the police or fire department may direct traffic, as conditions may require, notwithstanding the provisions of the Traffic Code.
(Schererville Town Code, § 8-2-42)