Can You Refuse a Breathalyzer or Field Sobriety Test in Illinois?

Mar 20, 2026

Can You Refuse a Breathalyzer or Field Sobriety Test in Illinois? Facing a DUI charge in the state of Illinois? Attorney Joshua Boardman from Combs Waterkotte discusses whether or not you can refuse field sobriety or chemical tests in Illinois.

Combs Waterkotte is a leading DUI and criminal defense law firm serving Illinois and Missouri. Our Illinois DUI defense attorneys will fight for your freedom and rights. If you are facing DUI charges anywhere in Illinois, we can help. Call us at (312) 500-HELP 24 hours a day, 7 days a week.

Interview Transcript

Scott Michael Dunn: Can I refuse a breathalyzer or a field sobriety test? Is there a difference between Missouri and Illinois?

Joshua Boardman: The difference in Missouri is it operates under the Department of Revenue. The state of Illinois operates through the Secretary of State‘s office. So if you refuse a breathalyzer or some sort of sobriety test whenever you’re being detained, then what occurs is a 12-month suspension of your license. Now you can file a petition to rescind that statutory summary suspension and you have to have a hearing within 90 days, but if you refuse, then you do lose your driving privileges. Over in Missouri, you’ve got a similar process to where if you refuse, then you can have a chemical verification for up to a year.

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