(625 ILCS 5/12-216) (from Ch. 95 1/2, par. 12-216)
    Sec. 12-216. Operation of oscillating, rotating or flashing lights. Oscillating, rotating or flashing lights located on or within police vehicles in this State shall be lighted whenever a police officer is in pursuit of a violator of a traffic law or regulation.
(Source: P.A. 85-830.)