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Illinois lists more than a dozen aggravating factors under 625 ILCS 5/11-501(d) that convert a misdemeanor DUI into felony aggravated DUI. The most common triggers include a third or subsequent offense, DUI while driving a school bus with passengers, DUI causing great bodily harm, DUI without a valid license or insurance, DUI in a school zone during posted hours, and DUI with a child under 16 in the vehicle. The chicagoduilawyer.net brand sees felony charging decisions vary by Cook County branch court. A savvy defense identifies the specific subsection early because the mandatory minimums differ, and so do the negotiation openings.

Published July 8, 2026 | Chicago Aggravated DUI Lawyer