Drunk Driving Criminal Law Attorney Serving Throughout the East Bay Area

Walnut Creek DUI Attorney

Defending Those Facing DUI Charges in Contra Costa County

I am Tom McKenna, a Walnut Creek DUI defense lawyer providing skilled and effective representation throughout Oakland and the East Bay area. Few criminal defense lawyers can match my 30+ years of experience in challenging license suspensions and protecting the rights of people accused of drunk driving.

DUI Laws & Penalties in California

To be arrested for a driving under the influence (DUI) in California, a driver who is 21 years of age or older must have a blood alcohol content (BAC) of at least .08 percent. However, the BAC limit for commercial drivers is .04 percent, while it is .01 percent for underage motorists.

A first DUI conviction carries a maximum jail term of 6 months, a fine of up to $1,000, and driver’s license suspension for 6 months. Getting convicted can also result in having a criminal record, which can negatively affect your professional reputation and personal life.

Do I Need An Attorney For a DUI in Walnut Creek, CA?

If you have been accused of driving under the influence, you need an attorney who can immediately begin the work of:

  • Keeping you out of jail
  • Reducing fines
  • Challenging the state’s evidence
  • Saving your license

Contact The Law Office of Thomas F. McKenna today at (925) 744-8404 to schedule a FREE initial consultation!


DUI Charges I Defend Against

There are many complications that can affect a DUI charge; often, these additional factors can lead to harsher punishments, such as increased fines and longer sentences. No matter what kind of DUI charge has been made against you, I will build the strongest possible case in your defense to protect your rights.

As a DUI lawyer in Walnut Creek, I have successfully defended countless clients against: 

 I have the knowledge and experience to challenge the evidence produced by breath and blood-alcohol tests. I provide strong, assertive representation in both DMV hearings and in criminal court that can help you to get back a suspended license or avoid jail time.

Get Help from a Proven DUI Defense Lawyer in Walnut Creek

If you have been charged with a DUI, the stakes are high. With my knowledge and experience, I can help you to challenge the accusations made against you and protect your license and your future. 


Contact the Law Office of Thomas F. McKenna today at (925) 744-8404 to get started on your defense with an experienced Walnut Creek DUI attorney.








  • This firm is the best in the Bay Area.

    “Thomas F. Mckenna is more than a criminal justice Lawyer, he and his staff are attentive, timely, caring, and get the results you want.”

    Shelly S.
  • They showed that they care and are responsible throughout the process.

    “Tom and his team were very pleasant to deal with.”

    Andy H.
  • One of the best lawyers in the Bay Area!

    “He will get you the best deal and even NO time at all!”

    D.G.

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