Most of the time in Illinois, a DUI is charged as a misdemeanor. If you are a first-time DUI offender and you are convicted, it is a Class A misdemeanor, which carries a maximum sentence of one year in prison and up to $2,500 in fines. Depending on your specific situation, a misdemeanor DUI charge could bump to a felony charge, which carries harsher penalties. Any DUI that is classified as a felony is called an aggravated DUI and can range from a Class 4 felony to a Class X felony.
Class 4 Felonies
While these are the lowest felony offenses, they are still serious charges. If you are convicted of a Class 4 felony, you can face one to three years in prison. Examples of Class 4 felonies as they pertain to DUI include:
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