Chicago Criminal Lawyer Blog
How DUI Arrests Unfold in Chicago, Illinois
As a Chicago DUI defense lawyer who has defended clients throughout Cook County for decades, I can say with confidence that no two DUI cases are exactly alike. Yet every case begins the same way — with an officer deciding that something doesn’t look right on the road. Whether it’s a lane deviation on Lower Wacker Drive, rolling through a stop sign in Wrigleyville, or driving home from a Bears game, law enforcement treats any sign of impairment seriously.
Under 625 ILCS 5/11-501, Illinois prohibits driving or being in actual control of a vehicle while under the influence of alcohol, cannabis, or any controlled substance. The law defines impairment broadly: a blood alcohol concentration (BAC) of 0.08% or higher, or evidence showing a driver was unable to operate a vehicle safely. Even a driver under that limit can be charged if the officer believes the person was impaired “to any degree.”
