Geherin Law Group Discusses False Positives on Ignition Interlock Devices

ANN ARBOR, Mich. - Michimich -- Geherin Law Group, PLLC. frequently get calls from clients who worked really hard to back their driving privileges following a conviction for OWI, only to quickly lose them again for an Ignition Interlock Device violation.  This is especially true for people who "blew numbers" on the device. They've received calls like:

"I used mouthwash (or ate food, or chewed gum, or used cough syrup) just before blowing into the Ignition Interlock Device, and blew a false positive; what should I do?"

"I don't know what caused the device to lock me out; what are my options?"

"I drank last night, and thought I would be fine my morning; am I in trouble?"

Ifyou intentionally drink alcohol and then have a start-up failure, almost certainly you'll face revocation of your license and possibly new criminal charges. There's simply no defense or excuse for that, especially if you were granted a license on the condition that you remain totally abstinent from alcohol.

However, if you truly have a false positive (from food, mouthwash etc.), the best way to fight the violation is to IMMEDIATELY provide a sample of your breath, blood or urine to prove it wasn't the result of beverage alcohol. Many police stations offer free Preliminary Breath Testing, and most urgent care clinics offer ETG tests (Urine Ethylglucuronide) which can confirm that a you haven't consumed alcohol in the proceeding 48+ hours.  Without these tests, the Secretary of State will assume that you drank alcohol and will impose swift and severe consequences. They just don't believe claims of false positives without verification.

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Learn more about how to prove a false positive on your ignition interlock device here (

If you've received a Major Violation notice, please call Geherin Law Group, PLLC. immediately for license restoration in Michigan ( today!

Geherin Law Group:

Attorney Daniel T. Geherin, owner of GLG Michigan, principal at, and author of TheMichigan Drunk Driving and Driver's License Restoration Handbook, a license appeal specialist for the last two decades. He's dedicated his career to helping put drivers back on the road following a license suspension or revocation. He's recognized as a license appeals specialist in Ann Arbor and throughout Michigan.  He has taught seminars and written articles through the Michigan Institute of Continuing Legal Education (ICLE) on license appeal topics.

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Visit GLG on the web at and Contact them today for a free initial consultation about how GLG can help you with your personal legal matter.

Dan Geherin

Source: Geherin Law Group, PLLC.
Filed Under: Legal

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