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Seattle DUI Attorney

Ignition Interlock Device

An ignition interlock device (IID or IIS) is a breath test machine similar to the breathalyzer which is wired into the ignition of the vehicle. Before the vehicle can be started, you must provide a breath sample into the device which is programmed to analyze alcohol levels. If the device detects alcohol above the preset levels, the vehicle will not start.

If you successfully start the vehicle, the IID will randomly require more breath samples or retests every few minutes to keep the engine running. The main purpose for the retests is to prevent a friend from breathing into the device, allowing the intoxicated person to get behind the wheel. If the breath sample isn't provided or exceeds the preset levels, the device will log the event, warn the driver and then start up an alarm until the driver turns off the ignition.

If you are convicted of DUI or plead guilty to DUI, the court will likely order an ignition interlock device installed in your vehicle for at least one year. More states are adopting the ignition interlock program which provides a DUI or DWI offenders an alternative to full license suspension. It allows offenders to maintain their regular responsibilities while also reminding them how their actions can affect their right to drive.

The court has the power to order the installation of an ignition interlock device even on first time offenders. But not all DUI offenders qualify for this program immediately. If they are repeat intoxicated drivers, their licenses will be suspended for a period and will require the installation of the IID after the suspension is over if they wish to continue to drive. The installation and maintenance fees run about $60-$70 per month and are paid for by the DUI offender.

For more information or a free consultation, please contact Seattle criminal and DUI attorney Philip G. Sayles. He can help you with your case.

Disclaimer: The information you obtain at this site is not, nor is intended to be, legal advice.  You should consult an attorney for individual advice regarding your own seperate legal issue.

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