Oakland Criminal Defense Attorney
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Hayward DUI Defense

Legal Counsel from an Experienced DUI Attorney

Being charged with a DUI can have heavy implications on your life. Many people don’t think about the penalties a DUI can have until it is too late. Whether you are facing steep fines or even jail time, The Castillo Law Office is ready to fight for you. We apply our 15 years of experience to each case, aggressively pursuing your best interests. Our Hayward DUI lawyers are ready to handle even the most complicated DUI cases. When you want an attorney you can count on, contact our firm as soon as you can!

Have questions? We offer free case evaluations!

Over 15 Years of Handling DUI Cases

Being arrested for a DUI can be stressful. That is why our team is dedicated to helping you through each step of the process.

Defense strategies that our Hayward DUI attorneys can use to protect you:

  • No probable cause for being pulled over or arrested
  • The officer didn’t provide Miranda Warnings
  • Probable or medical explanations for your behavior
  • Challenging the officer’s testimony
  • Providing witnesses that support your claim

Whether this is your first DUI offense or you have been charged with multiple offenses before, our legal team is committed to helping you pursue the best outcome for your case. You don’t have to fight the penalties of your DUI alone!

Contact Our Firm Today at (510) 894-6626

At The Castillo Law Office, we believe in delivering dedicated and seasoned advocacy to each case we serve. That is why we have been selected for “The National Top 100 Trial Lawyers” and the California Super Lawyers® list. Our firm has been featured on multiple media outlets, delivering numerous successful results for our clients. We are not afraid to challenge the arresting officer’s testimonial or evidence in order to help our clients succeed.

If you have been arrested for DUI in Hayward, our firm can represent you. Contact our office today at (510) 894-6626.

Hear it From A Few
Of Our Clients

  • I would highly recommend Mr Castillo to anyone.

    “Mr Castillo represented me on a criminal case in which I was falsely accused in 2012. He took over the case from a previous lawyer who was less aggressive and not actively pursing my defense. Mr Castillo is a confident, aggressive and very persistent lawyer. He kept my family and I up to date on the case and also returned our calls on time. Mr Castillo persuaded me not to take any deal and wanted take the case to trial because he was confident that he would win. With the Lord's guidance and Ernie's aggressiveness my case was dismissed. I would highly recommend Mr Castillo to anyone.”


  • I can't thank Ernie enough for investing his time and sincere efforts to helping my family out. He truly is a master of his craft.

    “A few years back, Ernie Castillo represented a family member of mine who was charged with a vehicular offense. Although minor compared to the high profile cases Ernie is accustomed to, Ernie took the case with the utmost professionalism and was able to reduce the charge so that my family member's record was not affected. I can't thank Ernie enough for investing his time and sincere efforts to helping my family out. He truly is a master of his craft.”


  • I would recommend Mr. Castillo without any reservation.

    “Ernie Castillo was highly recommended to us. I researched and interviewed a few attorneys before making a decision of who we were going to select. It's so tough selecting when you're skeptical with the horror stories of attorney's not feeling the passion for their work but the money. After long conversations my husband and I decided to go with Ernie to represent our son in a serious case with multiple charges. We were not disappointed at all. Mr. Castillo expertise exceeded our expectations. His was thorough, he kept us up to date on the case, answered all our questions, returned our calls in a timely manner, he's truly a genuine and sincere person. Most of all his knowledge in handling the case was remarkable. I can't express thanks enough to Ernie for the spectacular job he did defending my son who was facing years in jail. He took a stressful situation and relieved it with a positive outcome. I would recommend Mr. Castillo without any reservation.”