Contra Costa DUI Attorney | Drunk Driving Defense Lawyer Derek Ewin

Law Office of Derek R. Ewin
201 North Civic Drive
Suite 225
Walnut Creek CA 94596

Office: 925-262-8406
Fax: 925-372-9436
Cell: 925-209-6616
Fax: 925-262-8398
Email:This email address is being protected from spambots. You need JavaScript enabled to view it.


Welcome to the Law Office of Derek R. Ewin, where we use our Extensive Experience Defending Drunk Driving Cases in the Contra Costa County Superior Courts to help our clients get the Best Possible Results.

Derek Ewin has spent the last 18 years prosecuting and defending DUI cases in the Contra Costa County Superior Courts. During his nearly 12 years as a Contra Costa Deputy District Attorney, he handled hundreds of Drunk Driving and DUI cases in all of the county courthouses including, Walnut Creek, Richmond (Bay), Pittsburg (Delta) and Martinez. His duties ranged from reviewing and filing cases, to negotiating with attorneys and judges, to prosecuting motions and jury trials, to sentencing and appeals. As a defense attorney, Mr. Ewin has used his knowledge of the inner workings of the DA's Office and Contra Costa Courts to get his clients the best possible results.

Mr. Ewin also handles other aspects of Drunk Driving litigation. He will represent you against the Department of Motor Vehicles. The DMV will attempt to suspend your license a short period of time after your DUI arrest. You only have 10 days from your arrest to sign up with the DMV to contest that suspension. Mr. Ewin will defend you at your DMV Suspension Hearing and minimize or prevent any adverse impact on your driving privilege.

Most cases don't go to trial, but when they do, you need an attorney who is comfortable in the courtroom and experienced in trial. Mr. Ewin has handled over 100 trials ranging from Homicide and Vehicular Manslaughter to Simple Drunk Driving and Traffic cases. He has the skills to give you the best possible defense.

Mr. Ewin has been appearing in and interacting with the Contra Costa County Courts, Judges and Court Staff for almost two decades. He has known many of the Deputy District Attorneys for the same period of time. His reputation is one of integrity and skill. These relationships and this reputation help Mr. Ewin get you the results you are looking for in your DUI case.

Serving the Greater San Francisco Bay Area

A drunk driving arrest triggers very important time limits. You need to contact Mr. Ewin immediately. Your privilege to drive could be impacted in as little as 10 days if you do not toll these limits. In some cases, if Mr. Ewin can contact the DA's office early enough, he can give the filing deputy district attorney exculpatory information that will prevent your case from being filed at all. Reduce or even eliminate the consequences of your DUI arrest by calling Mr. Ewin right away.

Don't wait. Contact us as soon as possible (24 hours a day, 7 days a week)

(925) 262-8406


Credit Cards Accepted
Visa, Master Card, Discover and AMEX are accepted

For more information about Derek Ewin, the types of cases we handle, the jurisdictions we practice in and criminal law in general please review this web site or give us a call.

The Law Office of Derek R. Ewin serves clients throughout the San Francisco Bay Area, including Walnut Creek, Danville, San Ramon, Alamo, Concord, Pittsburg, Bay Point, Antioch, Brentwood, Richmond, Kensington, Martinez, Orinda, Lafayette, Oakley, Pinole, San Pablo, Clayton, Crocket, Pleasant Hill, Moraga, Discovery Bay, Kensington, El Cerrito, Hercules, El Sobrante, San Francisco, Oakland, Alameda, Benicia, Vallejo, Santa Rosa, Fremont, Dublin, Hayward, Pleasanton, San Mateo, Daly City, Pacifica, Petaluma, Rohnert Park, Redwood City, San Anselmo, San Bruno, San Carlos Napa, Sonoma, Vacaville, Fairfield, Albany, American Canyon, Livermore, San Leandro, San Rafael, Santa Clara, Sausalito, South San Francisco, East Palo Alto, Emeryville, Fairfax Union City, San Jose, Sunnyvale, Menlo Park, Bayside, Berkeley, Palo Alto, Foster City, Corte Madera, Half Moon Bay, Healdsburg, Larkspur, Mill Valley, Milpitas, Mountain View, Newark, Novato, Brisbane, Burlingame, Campbell, East Bay, Silicon Valley, and Napa Valley, as well as Contra Costa, Alameda, San Francisco, San Mateo, Solano, Napa, Santa Clara, Marin, Santa Cruz, Monterey, San Joaquin, Yolo and Sonoma counties.


5 star rating based on 25 client reviews

Client Testimonials

Posted by: Nicholas

Client Review:
I spoke with several attorneys concerning a d.u.i. case. Derek was very honest and calming, in what could have been a disaster in my life. Read more ...

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  Law Office of Derek R. Ewin, Attorneys & Lawyers - Criminal, Walnut Creek, CA