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The Law Office of Derek R. Ewin.

Best Criminal Defense Law Firm In Contra Costa County

Welcome to the Law Office of Derek R. Ewin, where we use our Extensive Experience in the Criminal Justice System to help our clients get the Best Possible Results.

The Law Office of Derek R. Ewin has been providing personalized legal assistance in Criminal Law since 2005. Former prosecutor Derek R. Ewin has experience in three different prosecutor’s offices and as a defense attorney, and he has tried over 100 cases, ranging from Drunk Driving and Traffic cases to Complex Robbery, Vehicular Manslaughter and Murder charges. Mr. Ewin has handled thousands of cases in his career and as a result is well respected by District Attorneys, Judges, Private Attorneys and Court Staff.

Our firm has a reputation of integrity, honesty and skill with local prosecutors, defense attorneys, judges and court staff. We work tirelessly to help our clients to get their lives back in order and to get them free of the Criminal Justice System. Clients and Former Clients continually call and write to tell us, how our representation of them has changed their lives for the better.

Serving the Greater San Francisco Bay Area

Our firm handles all criminal law cases, including Misdemeanors, Felonies and Drunk Driving for Adults and Juveniles, at any stage of the proceedings, including if:

(1) you believe you are being investigated,
(2) you have been arrested,
(3) you have been charged,
(4) you have already been to court,
(5) you have violated probation,
(6) you want to clean up your prior record, or
(7) you are a victim or a witness and you feel you need representation.

  • “Overall I was very pleased with the work and outcome of my case.”

    Guzzie R.

  • “From the initial meeting to the end of my case Derek was very helpful. He had knowledge about what I was expecting, and a lot of experience in handling my case. I’ve already referred him to someone else, and will continue to refer him.”


  • “Derek Ewin assisted me through a very tough period of my life. He did so while providing me with realistic potential outcomes. He was straight and to the point but never lacked empathy for what I was going through.

    I highly recommend Mr. Ewin’s services if you find yourself up against the legal system’s meat grinder. He will explore all options and give you timely information so that you do not feel in the dark. While incarcerated I was kept informed personally be several visits. He never judged me, but looked at the issues at hand from several perspectives while maintaining a firm grip on the legal aspect and ramifications. His demeanor while in court was professional and it was clear that the court too shared my respect for Mr. Ewin.”


Derek R. Ewin - Criminal Lawyer, Walnut Creek City

Call Now For A Free Consultation

(925) 308-6444

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