Passionately Protecting Your Rights
Let the DUI Guru Fight For You
Extensive Experience

Throughout my two-decades-long career in law, I have solely focused on DUI-related cases. The specificity of my experience sets me apart.

Personal Approach

Tell me your story. I'm here to listen to you. I take the time to get to know my clients beyond the details of their cases because I truly care.

Ahead of the Curve

The law is constantly changing. I aim to get ahead of any updates that could impact your case so I can effectively fight for the results you deserve.

DUI Criminal Law Attorney  &

DMV License Hearing Attorney 
in Santa Rosa, California

Jon W. Woolsey

Jon W. Woolsey

Attorney at Law

After a twenty-year-long career in marketing and advertising, I chose to pursue a new opportunity—one in which I could really make a difference in the lives of others. As the Santa Rosa "DUI Guru," I get the chance to help people overcome their legal difficulties and build a future uninhibited by their past. A single mistake does not define who you are, nor should it affect your future. While my relevant training, my many published cases and evaluations, and my memberships in several prestigious associations are impressive, what truly sets me apart is my passion. I genuinely care about the work I do and the people I represent.


I didn't choose to be an attorney because it runs in my blood or it's what was expected of me. I chose this path because I wanted to make a difference. I'm driven by pure passion.

Jon W. Woolsey

Focused Solely on DUI Defense

When you're facing DUI charges, don't turn to an attorney with an exhaustive list of practice areas in their arsenal. You need the assistance of a legal professional who knows DUI law like the back of their hand. DUI defense is what I do—it's my bread and butter. There is no one more experienced, focused, or prepared to fight for you than the DUI Law Firm of Jon Woolsey.

For over two decades, I have represented those accused of driving under the influence of alcohol, marijuana, and other drugs. A conviction of this crime can jeopardize your driving privileges, your reputation, and your future. When so much is at stake, let me put my experience to work for you. I can analyze every detail of your case, looking for possible mistakes on the part of the officer and others involved to formulate your defense. Even the smallest slip-up by the opposing party can lead to a successful outcome for you.

When you come to me for assistance, the first thing I'll do is listen to your story. I want to get to know you, not just the details of your case. Tell me what you want to get out of working with an attorney so I can do everything in my power to meet your expectations. By gaining a complete understanding of your situation and your goals, I can better set you up for success.

My job is only done when you are satisfied with the outcome of your case. If you're ready to start fighting back against your DUI charges, schedule a free initial consultation with me in Santa Rosa. We can discuss your options, including your eligibility for diversion. This program grants defendants the opportunity to complete various treatments or educational courses, after which their charges will be dismissed. You deserve the opportunity to clear your name and protect your rights. Let the DUI Guru give you that chance.

My DUI Services


Hear From My Clients

Let them tell you how I can help.

National Association of Criminal Defense Lawyers


National Association of Criminal Defense Lawyers

National College for DUI Defense Member


National College for DUI Defense

California DUI lawyers association


California DUI Attorneys Association

California Association for Criminal Justice


California Attorneys for Criminal Defense

Proven Results

DUI Case

My client was involved in a single-car rollover accident with a BAC of .14.

Case Dismissed by Judge at End of Trial

DUI Case

My client was charged with a DUI with a BAC of .16, which was discovered through a urine test.

Jury Found Client Not Guilty

2nd Offense DUI

My client was charged with a 2nd offense DUI within 4 years of the first DUI charge. Their BAC was recorded at .11 by a breath test.

Charges Reduced to Dry Reckless

My Goal: TO Help You Save Your License

The DMV is a powerful agency with the ability to turn your life upside down with just one decision. Do not attempt to go up against this entity alone. If you're facing an administrative hearing in Santa Rosa or its surrounding areas, allow me to represent your rights and fight for your driving privileges.

The purpose of a DMV license hearing is to determine whether you will lose your license. Some possible situations that may result in an administrative hearing include a DUI arrest, a commercial driver operating a commercial vehicle with a BAC over .04%, or a person's refusal to submit to a chemical test. No matter the reason behind your involvement in an administrative hearing, reach out to me as soon as possible to get the guidance you need.

The DMV will attempt to suspend your license through the use of the arresting officer's statement, the arrest report, your breath or blood test results, and other documents. It is imperative that your attorney make the necessary objections and understand the complex rules governing these hearings. I have handled over 1000 DMV license hearings throughout my career, giving me the in-depth knowledge necessary to navigate these proceedings with confidence and finesse.

My priority is to prevent you from losing your license. I'll use my relevant training, my smart instincts, and my extensive experience to fight for you. Reach out for help in Napa, Mendocino, Marin, and Sonoma Counties.