Faced with Criminal Charges? Shelley D. Dwyer is Ready to Protect Your Constitutional Rights.

Ignition Interlock Devices in Redwood City

Convicted of Drunk Driving in the Bay Area?

Certain individuals who are convicted of drunk driving in the state of California may be required to have an ignition interlock device (IID) installed in their vehicle. This is in addition to other DUI-related penalties, including fines, incarceration, probation, and others. 

Alcohol and keys - drunk driving leading to ignition interlock device

If you are facing drunk driving charges for the first, second, third, or subsequent time, do not wait to discuss your options with an experienced DUI lawyer in the Bay Area. Attorney Shelley D. Dwyer serves clients throughout the San Francisco Bay Area in DUI defense matters and has over 30 years’ experience doing so. She can explain the implications of having an ignition interlock device installed on your car and your potential legal options.


Call(650) 419-2940 or contact us online to schedule your free consultation with our DUI attorney in the Bay Area.


What is an Ignition Interlock Device?

An ignition interlock device (IID) is essentially a portable Breathalyzer test that is installed in a vehicle. Before the vehicle can be started, the driver must blow into the IID. If the individual’s blood alcohol content level registers above the designated limit, the car will not start.

In certain counties in California (including Alameda County, Tulare County, Los Angeles County, and Sacramento County), an individual who is convicted of drunk driving for the first time must install an ignition interlock device in his or her car. Otherwise, an IID is typically installed after an individual is convicted of DUI for the second or subsequent time.

The length of time an individual is required to have an IID installed in his or her car varies, but can range from a few months to a few years. An IID can cost a lot of money. Many companies charge individuals a daily rental fee, plus the cost of installing the device.

Contact a Bay Area DUI Attorney

Have you been charged with DUI? You may be required to install an ignition interlock device on your car if you are convicted and you may face additional DUI penalties

To learn about your defense options and ways to avoid having an IID installed in your car, please contact us online today at (650) 419-2940. Attorney Dwyer offers a free initial consultation.

  • More than 150 Jury Trials Handled
    Attorney Dwyer's comprehensive legal abilities stem from the previous complex cases she has handled.
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    When your constitutional rights are being violated, call the Law Offices of Shelley D. Dwyer.
  • Over 30 Years of Experience
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When Your Freedom Is On the Line,

Contact the Law Offices of Shelley D. Dwyer.

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