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What Happens If I Tamper With My Ignition Interlock Device?

Ignition interlock devices (those car breathalyzers that they might make you put in your car if you are charged with DUI) are a hassle. You must blow in them to start your vehicle and then deal with retests every few minutes to ensure you are not impaired. They have cameras, so you can’t have someone else blow into one and switch seats with them to drive. Doing anything to circumvent the ignition interlock device can worsen your punishment. Here’s how.

Suppose authorities receive credible information that you have tried to get around the proper usage of your ignition interlock device. In that case, they might revoke your license. When they do, the length of the revocation can be one year or the time remaining on your original interlock requirements – whichever is longer. You will be required to get your interlock serviced every 60 days, so if tampering occurs, it will be noted at this time. Avoiding servicing can result in a suspended license.

The Most Common Methods of Circumventing an Interlock

There are three standard methods people use to get around interlocks (don’t try this at home):

  1. Disabling or bypassing the components of the interlock that control ignition
  2. Having someone else blow into your interlock for you
  3. Driving a car without an interlock

Interlocks sometimes have problems that make any of the three above options seem attractive. False positives, in particular, can be very annoying, especially since you may have to wait a while before you can retest, even if you haven’t had a drink in weeks.

If you are having problems with an interlock device and would like to explore legal options, such as how to get it removed early, speak with a drunk driving attorney.


In conclusion, tampering with an Ignition Interlock Device (IID) can have serious legal consequences and jeopardize the progress of individuals on probation or with restricted driving privileges. Thomas & Ahnell, LLC, a reputable legal firm specializing in criminal defense, emphasizes the importance of complying with IID requirements to avoid additional penalties. Engaging in tampering activities, such as trying to bypass or manipulate the device, not only violates the terms of probation but may lead to extended license suspension, fines, or even incarceration. It is crucial for individuals facing such situations to seek legal counsel promptly, and Thomas & Ahnell, LLC stands as a reliable resource to navigate the complexities of IID-related legal challenges and provide effective defense strategies.

Do you have further questions or concerns? Call us or contact the attorneys at Thomas & Ahnell, LLC, and we will be happy to help.

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