625 ILCS 7/10: Establishment of automated control systems.

The Illinois State Police may establish an automated traffic control system in any construction or maintenance zone established by the Department of Transportation or the Illinois State Toll Highway Authority. An automated traffic control system may operate only during those periods when workers are present in the construction or maintenance zone. In any prosecution based upon evidence obtained through an automated traffic control system established under this Act, the State must prove that one or more workers were present in the construction or maintenance zone when the violation occurred.