Reviewed on: April 29,2026
Parole, Probation & Supervised Release

What Happens if You Drive Without an Ignition Interlock?

My boyfriend was arrested last night because he was driving without the interlock system in a car. They took him to Western, and is suppose to hear from a magistrate this morning... Worst case scenario ?

The range of outcomes here runs from a stern warning all the way back to finishing the original sentence, and where your boyfriend lands depends on several
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Answered by a former federal inmate · 14+ years advising families
✓ Verified answer October 20,2016 · Parole, Probation & Supervised Release
1

The range of outcomes here runs from a stern warning all the way back to finishing the original sentence, and where your boyfriend lands depends on several factors that will become clearer after the magistrate hearing.

Driving without a court-ordered ignition interlock device is not a minor technical slip. The interlock was a condition imposed by a judge as part of a sentence or probation agreement. Violating that condition tells the court that its orders were ignored, and judges do not respond well to that, regardless of how minor the underlying act seems.

The magistrate this morning will likely set a bond or hold him while the violation gets referred back to the original sentencing judge. That referral is where the real decision gets made. The sentencing judge is the one with authority to determine consequences, and that judge is working from the position that leniency was already extended once and was not honored.

Best case is a slap on the wrist, a warning, stricter conditions, and release. Worst case is being sent back to serve part or all of the remaining time on the original sentence. Courts are comfortable letting someone sit while the violation process plays out, and there is no urgency on their end to resolve it quickly.

What works in his favor is a clean record since the original sentence, a credible explanation for what happened, and an attorney making the best possible argument before the sentencing judge. Without representation, he is walking into that hearing at a significant disadvantage. Get a lawyer involved today if at all possible.

Accepted Answer Date Created: October 20,2016
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About this answer: This response was prepared by InmateAid’s editorial team in consultation with former inmates who have direct experience with the federal correctional system. InmateAid has served families of the incarcerated since 2012. This is general information only — not legal advice. Last reviewed April 2026.