Every motor vehicle operated on the highways of the State by officers and members of the State Highway Patrol shall be equipped with a siren. Whenever any such officer or member operating any unmarked car shall overtake another vehicle on the highway after sunset of any day and before sunrise for the purpose of stopping the same or apprehending the driver thereof, he shall sound said siren before stopping such other vehicle.
N.C. Gen. Stat. § 143B-1721
Patrol vehicles to have sirens; sounding siren
1957, c. 478, s. 11/2; recodified from N.C
Official source: North Carolina General Assembly. Reproduced from public-domain North Carolina statutes; confirm against the official source for the current text. Not legal advice.