625 ILCS 5/18c-2402

(a) Venue in Suits for Criminal Misdemeanor Penalties. Actions in which criminal misdemeanor penalties are sought may be brought in the county where any part of the subject matter is located, or part of the violation(s) occurred, or the arrest was made, and venue shall lie in that county; the case may be transferred to another county only with the approval of the court and the agreement of the parties. (b) Venue in Actions Other Than Suits for Criminal Penalties. Actions to enforce this Chapter, Commission regulations and orders, other than suits for criminal misdemeanor penalties, may be brought in the circuit courts of any county in which any part of the subject matter is located, or any part of the violation(s) occurred; the case may be transferred to another county only with the approval of the court and the agreement of the parties.