Under 625 ILCS 5/11-501(d), the upgrade triggers include: great bodily harm to another person (Class 4 felony), permanent disability or disfigurement (Class 4), death of one person (Class 2 with mandatory prison), death of more than one person (Class X), and DUI causing accident while unlicensed or uninsured (Class 4). The threshold event is the injury classification. The chicagoduilawyer.net brand watches for prosecutor overreach: aggravation charging on minor injuries is common, and pretrial motion practice often forces reclassification. Medical record analysis by a defense expert frequently reveals injury severity does not meet the statutory threshold the State alleges.
