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The Law Office of Derek R. Ewin.

Your Trusted California DUI & Criminal Defense Lawyer

Experienced Defense Attorney - Over 100 Criminal Trials

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.
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24/7 Criminal Defense with Integrity

Our firm handles all criminal law cases 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.

Types of Criminal Defense Cases Our Firm Handles

Client Testimonials

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Charged with a Crime?

(Useful Info Revealed that may help you in your Case)

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About Attorney

Derek Ewin has a wealth of Criminal Law experience including more than 30 years in County Prosecutors’ Offices. Eleven of those years Mr. Ewin worked as a Deputy District Attorney in Contra Costa County. As a Deputy DA, Mr. Ewin prosecuted thousands of cases, including but not limited to: Robbery, Homicide, Drunk Driving/DUI, Possession, Possession for Sale and Sale of Illegal Drugs, Three Strikes, Theft, Burglary, Auto Theft, Domestic Violence, Assault with Deadly Weapon, Illegal Firearms, Vandalism, Sex Crimes, Stalking, Gang cases, Arson and Drive By Shootings. At the DA's Office, Mr. Ewin worked in several divisions including Misdemeanors, Felony Trial Team, Calendar, Juvenile, Felony Filing, Domestic Violence/Sexual Assault, Preliminary Hearings and Homicide/Gangs. As a Criminal Defense Attorney, Mr. Ewin has handled numerous adult and juvenile cases in the Greater San Francisco Bay Area. He has successfully defended hundreds of misdemeanor, felony and drunk driving cases....Read More

Areas We Serve

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
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