Areas Of Practice – We Are Focused


Driving Under the Influence

of Alcohol, Marijuana, Drugs

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DMV License Hearings

DMV Suspensions & Revocations

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Appeals: Court & DMV Rulings

Appeals of Trials, Motions and License Suspensions

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DUI Law Firm of Jon Woolsey

“Why should you hire me for your DUI case and DMV Hearing?”

The DUI Law Firm of Jon Woolsey focuses his practice entirely DUI defense and DMV license suspension hearings, limiting his practice to the court systems of Sonoma, Napa, Marin & Mendocino Counties.


– Jon W. Woolsey, passionate attorney

Jon W. Woolsey is a solo practitioner. He isn’t an ex-cop or ex-district attorney, he hasn’t spent years in the public defender’s office, and his father isn’t a judge.

What he is however is an attorney who is passionate about protecting the rights of citizens who have been caught up in what has become the single, most common criminal charge in America.

– 707-570-0770, Law Firm hotline

The Law Firm hotline, 707-570-0770, is always open to provide you with responsive, superlative legal advice and representation, any hour of the day, seven days a week!

Our initial consultations are complimentary so long as you take the time and effort to complete our extensive interview questionnaire. Only then can we adequately provide you with competent and thorough guidance that you’ll need in determining how your case will fair in the courts and at the DMV.


Anatomy Of A DUI :

  • You are NOT legally required to take any of the various tests that officers seem to demand that you do for them! Cops generally have already decided to arrest you or not before they say that they want you to take a few tests. Now, all you are going to do is make matters worse for yourself by giving them additional evidence that can be used later at trial or against your attempts at gaining a favorable plea bargain.

Illegal Stops

The Right of the People to be secure in their persons, houses, papers, and effect, against unreasonable searches and seizures … Amendment IV [1791]

Police Officer Trickery

We see today that the Law Enforcement we have always believed were there to “Protect and Serve” have lost our trust by their own actions of deceit and brutality.

Phony Field Tests

The National Highway Traffic Safety Administration spent millions to develop Standardized and Validated Field Sobriety Tests so why don’t the police use them the way they were meant to be used?

False Breath & Blood Tests

No Warrants Shall Issue, but upon probable cause, supported by Oath or affirmation, and particularly describing the place to be searched, and the persons or things to be seized … Amendment IV [1971]


  • Everything turned out more favorable than I prepared for and you made it all happen ...

    Everything turned out more favorable than I prepared for and you made it all happen. I just couldn't believe that people actually beat these charges. Everybody I talked to said to just plead this and be over with it, but your courage kept me thinking that I could actually win and we eventually did just that. What a great day when that jury foreman said, "Not Guilty" twice. I felt like O.J. and you seemed just like Johnnie Cochran. I will always appreciate the attention, understanding and patience you so graciously gave to me throughout every step of the way
    Keida B. San Mateo, CA
  • I can't thank you enough for all you have done in helping me ...

    I can't thank you enough for all you have done in helping me through what was one of the most trying and emotional times of my life. When a friend referred me to you I wondered what kind of attorney would take on such a hopeless case. My self esteem was at its lowest that I can ever remember. As soon as you began dealing with my case, I had the attitude that everything would work out and it did. You are the best at what you do and I if I ever get a chance to do anything at all for you it will be my second blessing in life.
    Sue H. Marin County
  • You never once let a negative thought come into our defense ...

    At first, when I was talking with the Alternative Defender, he said I'd definitely do jail time and that would be the end of my job and forthcoming marriage. When you were recommended to me I couldn't believe you at first when you said not to worry about jail, but to focus on winning. You never once let a negative thought come into our defense and now I understand what the power of positive thinking can do. Well, your experience and powers of persuasion also went a long way to winning as well. I can't wait until I can recommend you to someone else.
    Jan B. Napa County
  • I was impressed with Jon's...

    I was impressed with Jon's familiarity with the separate processes involving DMV and the courts and was happy with his handling of both.

    He kept his focus on the end result and informing me along the way. It eased my mind that every call and email I sent was handled personally and immediately by Jon.
    Jerry Wendel (Google+ url)
  • Jon is everything that a DUI attorney should be:

    Jon is everything that a DUI attorney should be: knowledgeable, responsive, experienced, and not afraid to stand up for his clients' rights.

    I strongly recommend his services if you have been accused of driving under the influence of alcohol and/or drugs.
    Dustin Ingraham (Google+ url)
  • Better than I ever imagined...

    Mr. Woolsey did an excellent job for me. Made any involvement on my part totally transparent and unnecessary. Made excellent referrals wrt required activities. Great followup, communication.

    Overall he did much more than I expected resulting in something much less imposing, costly and restrictive than I expected. The one thing that I learned most of all is the wisdom of sticking with an attorney who specializes.
    I recommend Jon Woolsey.
    Rob (on Avvo)
  • DUI while on vacation...

    While visiting the Santa Rosa area on vacation I was arrested for a DUI. Once I returned to the Southern California area I contacted Jon. He was knowledgeable and honest and put my fears at ease. He was able to handle all court proceeding without me having to travel back to Santa Rosa and took care of all the D.M.V issues as well.

    On top of everything else he was affordable and I was able to make monthly payments. I truly do not know what I would have done if I did not have Jon in my corner every step of the way.

    If you ever find yourself in a situation like this I would strongly recommend calling Jon Woolsey. The only thing left to say is THANKS JON!
    Albert (on Avvo)
  • You turned the worst experience of my life into the greatest victory...

    You were the most aggressive person I've ever met, but on the other hand, you were also the most compassionate and supportive person I've ever met as well. You were always available to talk and never too busy to meet with me when I felt that I needed the time. You turned the worst experience of my life into the greatest victory I've ever experienced! Thanks, You are truly the DUI Guru!
    Tom T. San Francisco, CA
  • I was arrested for my second DUI...

    I was arrested for my second DUI with a .18 blood alcohol content. This was serious and the prospect of jail time was so frightening. I was afraid that I'd lose my job and driver's license. You worked out an inconceivable deal with the District Attorney and I will be forever appreciative of all the help you gave me.
    Joe C. Santa Rosa


Fill out the form below to recieve a free and confidential intial consultation.

Date of Arrest:

Date of Court Appearance:

County of Arrest:

What Substances Were You Accused of Consuming?

What Tests Did You Take?

How Did You Find Jon?

What Was the Reason for the Initial Stop or Contact (Examples: Tinted Windows, No Front Plate, Weaving, Speeding, Collision, Came to My Home or "Don't Know")

If There Was An Accident Please List The Details (Examples: Ran off the Road, Hit Another Car, Nobody Was Injured, I Had 2 Passengers, The Driver of the Other Car Was Injured)

Were There Any Witnesses To The Stop and/or Did You Have Any Passengers In Your Car That Were Under 14 Years of Age? Please Describe or Say NO.

Please Give Other Details About Your Case :