DUI Resources Unmatched Skill, Unwavering Advocacy.

DUI Resources in California

Our DUI Resources section provides information on Vehicle Code Sections, Breathalyzers, and blood testing, DUI License Suspension, License Suspension Hearings and more.

Contact Wilber Law Offices DUI attorney for a free initial consultation.

Vehicle Code Sections Applicable to DUI Charges

Sections 23152-23229.1: This body of statutes provides a definition of misdemeanor and felony drunk driving, along with a few attendant sections.
Section 23136: The so-called “zero tolerance” law applying to drivers under 21 with 0.01% blood-alcohol.
Section 23140: Drivers under 21 with blood-alcohol of 0.05% or greater.
Section 23520-23521: DUI “sentencing” in juvenile court.
Section 23502: Further provisions for those convicted of Section 23140 (drivers under 21).
Section 23536 etc.: Sentencing provisions for misdemeanor DUI.
Section 23554 etc.: Sentencing provisions for felony DUI.
Section 23572: Additional penalties (“enhancements”) in misdemeanor drunk driving cases.
Section 23575 etc.: Provisions requiring installation of “ignition interlock devices” (IIDs).
Sections 23247-23249: Further describes requirements for installing court-ordered ignition interlock devices.
Sections 23592-23596: More sentencing provisions.

Breathalyzers and Blood Testing

How Breathalyzers Work : With excellent simplicity, this describes how these machines generally work. This is a very non-scientific description but gives you the basic idea.
Alcohol Intoxication Testing : Basic overview of blood alcohol testing.
Introduction to Forensic Toxicology : Evaluation and analysis of toxins in one’s blood.
Breath Testing Machines : Overview of breath testing.
Intoxilyzer 5000 : The (old) standard breathalyzer used by many of the police agencies when investigating DUI.

DUI License Suspension

DUI License Suspension Statutes : California Vehicle Code sections defining suspensions in DUI cases.
The DMV : The California Department of Motor Vehicles.
DMV FAQs : The Department of Motor Vehicles' answers to frequently asked questions about DUI license suspensions.
Drivers Under 21 : California’s Zero Tolerance license suspension statutes applying to under-21 drivers arrested for DUI.
The License Suspension Hearing : Questions and answers from the DMV about the administrative hearing to contest the automatic DUI suspension. (Reminder: You must request a hearing within 10 days of arrest or you waive any right to a hearing.)

Powerful DUI Defense Led by Attorney R. Ryan Wilber

With over 14 years of litigation experience and more than 3,500 DUI cases handled, attorney R. Ryan Wilber provides elite, aggressive DUI defense grounded in proven results across both Superior Court trials and CA DMV hearings. As Vice President of the California DUI Lawyers Association (CDLA) and a NHTSA-certified Field Sobriety Test Instructor, Mr. Wilber not only stays ahead of shifting laws through 50-plus hours of annual DUI defense education, but also regularly lectures other attorneys on DUI defense strategies and DMV hearing tactics. From winning complex appeals after motions to suppress to filing advanced writs against the DMV, his track record reflects an unwavering commitment to protecting his clients' rights and records.

His defense strategy integrates rigorous scientific analysis with top-tier professional support, utilizing former CA DOJ toxicologists, criminalists, and retired law enforcement officers to challenge government breath and blood evidence. Because of this deep technical knowledge and relentless approach, attorney R. Ryan Wilber is the trusted choice for individuals facing high-stakes collateral consequences—including doctors, airline pilots, judges, police officers, military personnel, and licensed professionals whose careers, security clearances, and freedom are on the line.

The best next step in getting all of your questions answered is to schedule a FREE CONSULTATION with Wilber Law Offices today by calling (707) 986-4482.

Our Settlements & Verdicts

Case Dismissed Client Accused Of Possessing 2-pounds Of Marijuana For Sale
Case Dismissed Client Accused Of Possessing 7-pounds Of Methamphetamine With Intent To Sell
Case Dismissed Client Accused Of Possessing Marijuana
Not Guilty Client Charged With Assault Charges And Gang Enhancements
Case Dismissed Client Charged With Battery On A Correctional Officer And Resisting An Officer
Case Dismissed Client Charged With Domestic Violence
Case Dismissed Client Charged With Domestic Violence, Simple Battery, And Vandalism
Case Dismissed Client Charged With Domestic Violence, Simple Battery, And Vandalism
Case Dismissed Client Charged With Felony Cultivation Of Marijuana, Possession Of Marijuana For Sale, And Misdemeanor Narcotics Charges
Case Dismissed Client Charged With Felony Possession Of A Baton And Misdemeanor Possession Of A Concealed Handgun
Case Dismissed Client Charged With Possession
Case Dismissed Client Charged With Theft And Elder Fraud

View All Results

Contact Our Firm Today

For Dedicated Legal Representation

A member of our team will be in touch shortly to confirm your contact details or address questions you may have.

First Name
Please enter your first name.
Last Name
Please enter your last name.
Phone
Please enter your phone number.

This isn't a valid phone number.
Email
Please enter your email address.

This isn't a valid email address.
Are you a new client?
Please make a selection.
How can we help you?
Please enter a message.
By submitting, you agree to receive text messages from Wilber Law Offices, P.C. at the number provided, including those related to your inquiry, follow-ups, and review requests, via automated technology. Consent is not a condition of purchase. Msg & data rates may apply. Msg frequency may vary. Reply STOP to cancel or HELP for assistance. Acceptable Use Policy

Hear From Our Happy Clients

At Wilber Law Offices, P.C., your satisfaction is our priority! See for yourself what our clients have to say about working with us.

“Ryan is a consummate professional. I would recommend his services to anyone.”
Ryan is a consummate professional. I hired him to represent me on a high value fraud case. He was very attentive to my requests, always followed up with me in a timely manner, and ultimately won my case to the tune of over $400,000.

Chuckles G.
“Focused, Articulate and Thoughtful. Ryan is an asset to anyone needing legal assistance.”
Ryan is an asset to anyone needing legal assistance. Whether it is a simple question, a case where you need valuable perspective, or the beginning of a long and arduous process, Ryan has the knowledge and intellect that you want on your side. His thoughtful demeanor, his knowledge of the law and his desire to succeed are all traits that are surprisingly lacking with some other attorneys. I would not hesitate to use Ryan for any of my legal needs now and in the future.

Jeremiah
“Rachel you are a great attorney, your arguments were clear and factual. Your attention to detail was over the top and your counter arguing was impressive.”
There are no words on how to thank you for all you have done for me and our family, especially John Doe. He has been given a second chance at life and I will pray and hope that he will succeed… Rachel you are a great attorney, your arguments were clear and factual. Your attention to detail was over the top and your counter arguing was impressive. You should be highly regarded…

Former Client
“If your looking for an experienced trial lawyer this is the team you want to hire.”
Ryan Wilber & Wilber Law Offices helped me a lot (and that’s an understatement!) He was able to negotiate a deal for me that saved my career and kept me out of serious trouble. They are the best in Santa Rosa / Sonoma County. If you need legal help I fully recommend them! If your looking for an experienced trial lawyer this is the team you want to hire. He acted as a shield in my time of need and is the legal protection you want to hire in the complicated legal process of the court system.

William H.
“I believe you were God sent because the times where I felt discouraged and felt like giving up your encouragement and support helped me to once again stand and be confident in the type of man I am and the heart that I have”
I believe you were God sent because the times where I felt discouraged and felt like giving up your encouragement and support helped me to once again stand and be confident in the type of man I am and the heart that I have… I feel a huge burden has been lifted and I finally have closure after all this time and I can finally move forward… your support has really helped me through one of the most traumatic ordeals of my life.

Former Client
“I’ve consulted Ryan over the last year on several legal matters, both personal and financial. His knowledge of the law is comprehensive and his counsel has been invaluable to me.”
I’ve consulted Ryan over the last year on several legal matters, both personal and financial. His knowledge of the law is comprehensive and his counsel has been invaluable to me. I’ve talked to a few other lawyers in the past that I felt good about and were knowledgeable, but where Ryan really stood apart from the others was in his ability to help me fully grasp my options and clarify the legal process so I could make hard decisions with confidence. I was getting pushed around and feeling a bit intimidated before he helped me fight back. I’m very thankful to have Ryan there when I need him!

Former Client
“I’ve known Ryan for the better part of 20 years, he is very passionate about his work and it shows!”
I just went through the painstaking process of getting a DUI in Sonoma County. Ryan Wilber and his team did an amazing job in making this process go as smooth as possible. I’ve known Ryan for the better part of 20 years, he is very passionate about his work and it shows! Ryan and his office kept me informed with the most up to date information regarding my case and I was also able to log into an online account that was set up where I could access all of my documents. If you need legal help I would highly recommend Wilber Law Offices.

Beau K.
“I would definitely recommend Ryan Wilber to anyone in need of top notch legal representation.”
I have used Ryan Wilber several times. Ryan’s representation is both aggressive, and intelligent. His real word experience has proven invaluable to me, and has significantly lessened the consequences of my actions. I found Ryan’s rates to be as good or better then anywhere else around town. Ryan was available to me every time I needed to talk to him. I would definitely recommend Ryan Wilber to anyone in need of top notch legal representation.

TC

View All Reviews