315 Montgomery St Suite 900
sam@gellerlawsf.com
Underage DUI Lawyer Walnut Creek
Protect Your Child After an Underage DUI
Why You Need an Underage DUI Attorney in Walnut Creek
An underage DUI charge in California moves fast. Under California Vehicle Code § 23136, any driver under 21 can face a one-year license suspension for driving with a BAC of 0.01% or higher. That threshold is so low that even small amounts of alcohol can trigger a violation. The law does not require proof of impairment. Any detectable amount of alcohol is enough.
If the BAC is at or above 0.05%, VC § 23140 applies, and the driver may face DUI-related charges. At 0.08% or higher, a full DUI charge under VC § 23152 is possible, even for a driver who is 18, 19, or 20 years old. Understanding which charge applies matters from the very first day.
In Walnut Creek, DUI stops can occur on major roads like I-680 and SR-24 or during checkpoints conducted by local law enforcement, including the Walnut Creek Police Department and the California Highway Patrol. How the stop happens matters because it can determine whether the officer had legal grounds to pull the driver over. If the stop was not justified, that can become a key issue in challenging the case.
At Geller Law, PC, we defend young drivers and their families across Contra Costa County. We review every detail of the stop, the testing, and the arrest to find weaknesses in the state’s case. Where there are flaws, we push to have that evidence thrown out. Less evidence means a stronger position, and that can lead to reduced consequences or a full dismissal.
How We Help After an Underage DUI
California’s zero-tolerance law gives prosecutors very little room to be lenient. Moreover, the California Department of Motor Vehicles (DMV) starts its suspension process once notice is issued after the arrest.
Your child has been charged under California’s zero-tolerance law. The DMV is already moving to suspend their license. Criminal charges may follow depending on the BAC level. Every day without legal representation is a day the state builds its case unchallenged.
You have only 10 days from the date of arrest to request a DMV hearing. Miss that window, and the suspension goes into effect. No hearing. No chance to fight it. Most families do not find out about this deadline until it is too late.
Geller Law, PC steps in immediately. We request the DMV hearing, review the arrest record, challenge the stop, the test results, and the procedures followed at every stage. As an experienced California DUI lawyer, Samuel Geller knows exactly where these cases break down and how to use those weaknesses to protect your child’s future.
PRACTICE AREAS
Why Walnut Creek Families Trust Geller Law, PC
Samuel Geller leads every underage DUI case personally. You work directly with an experienced trial attorney from the first call to the final outcome.
Experience Built in the Courtroom
Before founding Geller Law, PC, Samuel served as a public defender in both Marin County and San Francisco. In his first three months as an attorney, he conducted his first jury trial and secured a not-guilty verdict. During his second week as a San Francisco public defender, he won a DUI jury trial. That kind of early, real courtroom experience is rare, and it shapes how Samuel approaches every case today.
Samuel has been recognized as a Super Lawyers Rising Star and a Top 40 Under 40 Trial Lawyer by the National Trial Lawyers. Geller Law, PC has also received Best of San Francisco recognition and Avvo’s Client’s Choice Award.
A Record of Real Results
Results matter more than promises. Here are some of the results Samuel has achieved for real clients facing DUI charges in the Bay Area:
- A client arrested for felony DUI causing injury with a BAC of 0.83% and 0.94% had their charge reduced to a misdemeanor. At trial, the jury returned a not-guilty verdict.
- A client who blew a BAC of 0.14% and 0.16% had their case dismissed entirely after Samuel successfully argued the traffic stop was unlawful.
- A client arrested at a DUI checkpoint with a BAC of 0.22% was found not guilty after two jury trials, after Samuel proved the breath machine used was faulty.
What We Handle
Geller Law, PC represents clients across a range of matters, including:
- DUI and underage DUI
- Domestic violence
- Felony and misdemeanor criminal defense
- Personal injury
- Lemon law
To learn more about Samuel’s background and approach, visit our About Us page.
What To Expect After an Underage DUI Arrest in Walnut Creek
California’s process moves quickly after an underage DUI arrest. Missing a single deadline can cost your child their license before anyone has a chance to fight it.
Step 1: The Arrest and Chemical Test
When a driver under 21 is stopped and suspected of drinking, officers use a preliminary alcohol screening test (PAS). This can trigger an administrative license suspension, separate from any criminal charge, and it carries serious consequences. We begin reviewing the arrest record, officer conduct, and test procedures right away.
Step 2: The DMV Hearing
After an arrest, the DMV moves to suspend the driver’s license unless a hearing is requested. Missing this window means losing your right to contest the suspension entirely. We file that request immediately and challenge the evidence, including how the stop was conducted and whether testing procedures were properly followed.
Step 3: Arraignment
If criminal charges are filed, the arraignment takes place in Contra Costa County Superior Court in Martinez. We appear with you, review the charges, and advise on how to proceed based on the specific facts of your case.
Step 4: Pretrial Motions and Negotiations
This is where the most important legal work happens. We file motions to suppress evidence where the stop or testing was unlawful, challenge breath test results, and negotiate with prosecutors for reduced charges or diversion.
Many cases in the Bay Area are resolved at this stage without going to trial. If your child received medical treatment following the arrest, those records may become part of the case file and should be reviewed carefully. This can include records from facilities such as John Muir Medical Center in Walnut Creek.
Step 5: Trial or Resolution
If the case does not resolve through negotiation, it proceeds to trial. We present your defense, cross-examine witnesses, and argue your case in court. Even after a verdict, post-conviction options such as expungement under California Penal Code § 1203.4 may be available depending on the outcome.
Start Protecting Your Child’s Future in Walnut Creek
Time is critical after an underage DUI arrest in California. Every day that passes without legal representation is a day the state builds its case without challenge. The decisions made in the first 48 hours can significantly affect the outcome of your child’s case.
Samuel Geller takes a personalized, aggressive, and strategic approach to every underage DUI case, starting with a close review of the facts from the very first call. You work directly with him throughout the case, from the initial review through resolution.
Contact Geller Law, PC today to speak with an underage DUI lawyer about what options may be available to protect your child’s future.
Common Questions About Underage DUI in Walnut Creek
1. Is an underage DUI in California a criminal charge?
A violation of the zero-tolerance law is a civil offense resulting in a license suspension only. Criminal charges apply at higher BAC levels.
2. What if my child refused the breath test at the stop?
Refusing a chemical test under California’s implied consent law triggers an automatic license suspension, separate from any other charge. The DMV acts on the refusal even if other charges are later dropped.
3. How long will the DMV license suspension last?
For a first underage DUI, the suspension is one year. A timely DMV hearing request gives your child a chance to fight it before it takes effect.
4. Can my child’s record be cleared after an underage DUI?
Those who complete diversion or probation may qualify for expungement. An attorney can review the specific facts and tell you which options may apply.
5. Does an underage DUI affect college financial aid?
Depending on the program, a conviction may show up on background checks used by schools and scholarship providers. Some aid sources require disclosure of criminal records, which can affect eligibility.