Chicago’s Labor Day Celebrations and DUI Enforcement

Labor Day weekend in Chicago is known for heavy traffic, neighborhood block parties, concerts, and gatherings along Lake Michigan. From the South Side to the North Side, celebrations draw large crowds, and law enforcement responds with intensified patrols. The Chicago Police Department, Illinois State Police, and suburban departments often announce that they will conduct DUI checkpoints and saturation patrols during the holiday weekend. These efforts frequently result in a significant increase in arrests, many of which involve drivers who never expected to be facing criminal charges.

Illinois law under 625 ILCS 5/11-501 makes it a crime to drive or be in physical control of a vehicle while under the influence of alcohol, drugs, intoxicating compounds, or a combination of substances that render a driver incapable of safe operation. Even drivers with a blood alcohol concentration of 0.08% or higher face per se liability. DUI can be charged as a misdemeanor or as a felony depending on the circumstances. A first or second offense without aggravating factors is a Class A misdemeanor, punishable by up to one year in jail and a $2,500 fine. However, when aggravating factors exist — such as causing a serious crash, having a child passenger, or driving with a revoked license — the offense becomes Aggravated DUI, a felony under Illinois law.