720 ILCS 550/13

(a) In addition to any other remedies the Director is authorized to file a complaint and apply to any circuit court for, and such circuit court may upon hearing and for cause shown, grant a temporary restraining order or a preliminary or permanent injunction, without bond, restraining any person from violating this Act whether or not there exists another adequate remedy.

(b) A conviction or acquittal, under the laws of the United States or of any State relating to Cannabis for the same act is a bar to prosecution in this State.