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Ignition Interlock Devices

One penalty for certain alcohol-related offenses is the installation of an ignition interlock device in the convicted individual’s vehicle. This device is installed into the dashboard of a vehicle and requires the driver to provide a breath sample before starting the car. If the driver’s breath contains a certain amount of alcohol, the device will prevent the car from starting and will log the incident.

If you or someone you know has been charged with DWI, the Raleigh DWI attorneys at the Law Office of Jim Black can help you fight back against unfair penalties. To speak with a qualified lawyer, contact our offices today by calling 919-600-4609.

Ignition Interlock Devices as a DWI Penalty

In North Carolina, anyone convicted of DWI with a blood alcohol concentration of 0.15% or more may be required to install an ignition interlock device in their vehicle for a period of time, often as an alternative to harsher sentencing. These devices work as follows:

  • A driver must blow into the device before the vehicle will start. If the driver’s breath contains a certain concentration of alcohol, sometimes as low as .02 percent, the device will log the event and the vehicle will not start.
  • If the driver attempts to start the vehicle, the vehicle alarm may sound and the lights will flash until the key is removed from the ignition.
  • To prevent another person from blowing into the device for the driver, some devices require that the driver provide another sample, often while driving. If alcohol is detected, the alarm will sound and lights will flash until the ignition is shut off.

The Raleigh DWI attorneys at the Law Office of Jim Black understand the serious consequences that a DWI conviction can have on your life, and we are dedicated to helping our clients fight for the best resolution possible in their cases.

Contact Us

If you or someone you know is facing DWI charges, our Raleigh DWI attorneys have the knowledge and experience you need to build a strong defense. Contact the Law Office of Jim Black today at 919-600-4609 to discuss your legal rights.


"Jim, I just wanted to thank you again for everything you did for me. I am very happy about the outcome and would recommend you to anyone and everyone who has a DUI case. Two things that stuck out the most is your patience and honesty, you wanted the best for me and that was obvious."

The Law Office of Jim Black

5 West Hargett Street #310
Raleigh, NC 27601

Phone: (919) 600-4609
Fax: (919) 834-4891


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From our offices in Raleigh, our attorneys represent clients throughout North Carolina including the communities of Raleigh, Cary, Apex, Fuquay Varina, Wendell, Garner, Holly Springs, and Wake Forest; residents of Wake County.

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