Are Field Sobriety Tests Required by Illinois Law?

Jul 23, 2026

Are field sobriety tests required by Illinois law? Attorney Joshua Boardman from Combs Waterkotte discusses everything you need to know about Illinois DUI criminal charges, including first-time DUI, second DUI, Illinois DUI laws, DUI defense strategies, CDL DUI charges, and more.

Combs Waterkotte is a leading DUI defense law firm serving Illinois and Missouri. Our Illinois 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: Are field sobriety tests required in the state of Illinois?

Joshua Boardman: They are not required to be participated in. Okay. So, whenever you’re the subject of a DUI stop and the officer asks you, “Do you want to participate in the field sobriety testing?” Or, “I’m going to have you step out of the vehicle and participate in this,” or if the officer asks you to submit to a breathalyzer test, you do not have to consent to that. You just need to understand that you will likely be arrested because you refuse those.

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