Los Angeles County Underage DUI Attorney

California has stricter DUI laws for drivers under 21 than for the general driving population, and a Los Angeles County underage DUI arrest can threaten a young person’s driver’s license, educational plans, and future opportunities before a single court date occurs. The stakes are real, and so is the urgency.

At Lucero, PC, our underage DUI attorney represents young drivers and their families throughout Los Angeles County, La Verne, Pomona, Rancho Cucamonga, and the surrounding communities. If your child has been stopped, detained, or arrested for an alcohol-related driving offense, call us at 909-503-4856. Early involvement allows us to protect the DMV deadline, preserve evidence, and begin building a defense from the start.

California’s zero tolerance law makes it unlawful for a driver under 21 to drive with a blood alcohol concentration (BAC) of 0.01% or greater, as measured by a preliminary alcohol screening test or another chemical test. A violation can result in administrative action against the driver’s license.

Under California Vehicle Code § 23136, underage drivers face administrative license action at just 0.01% BAC. California Vehicle Code § 23140 separately applies to underage drivers with a BAC of 0.05% or greater, carrying distinct penalties. California’s standard DUI laws, including driving under the influence and the 0.08% BAC threshold, can still apply to a driver under 21 when the evidence supports those charges.

This layered structure means underage DUI cases are rarely straightforward. The applicable law, the potential penalties, and the correct defense strategy all depend on the specific BAC reading, the circumstances of the stop, and whether the case proceeds through the DMV, the courts, or both.

After an underage DUI arrest in California, a driver generally has 10 days from receiving the suspension or revocation order to request a DMV hearing. Missing this deadline can result in losing the opportunity to challenge the administrative action before the DMV.

A first zero tolerance violation under Vehicle Code § 23136 can result in a one-year driver’s license suspension. For drivers under 21, a second refusal or failure to complete a required preliminary alcohol screening or other chemical test within the applicable 10-year period can result in a two-year revocation, while a third or subsequent refusal or failure can result in a three-year revocation. The consequences of repeat violations depend on the applicable law and the driver’s record.

The DMV proceeding is entirely separate from any criminal court case. Both timelines run simultaneously, and both require attention. Acting quickly after an underage DUI arrest is not optional. It is essential.

Underage DUI cases in Los Angeles County involve different legal thresholds, different courts, and different consequences than adult DUI charges, making experience with juvenile DUI defense critical to the outcome.

Several distinctions set these cases apart from adult DUI charges:

• Lower BAC thresholds. While adult drivers face DUI prosecution at 0.08% BAC, underage drivers can face administrative action at 0.01% and additional criminal exposure at 0.05%. The chemical test evidence must be evaluated with these lower limits in mind.
• Juvenile court proceedings. Drivers under 18 are generally subject to juvenile court proceedings, although certain serious cases involving 16- or 17-year-olds may be transferred to adult criminal court. Drivers aged 18 to 20 are generally prosecuted in adult criminal court. Juvenile court proceedings and records are subject to different rules from adult criminal proceedings.
• Diversion programs. Depending on the charge, the driver’s age, and the circumstances of the case, certain rehabilitative options may be available. Eligibility for a particular program must be assessed under the applicable law and court procedures.
• Alcohol education requirements. A violation of Vehicle Code § 23140 carries mandatory alcohol education requirements, including completion of the applicable DUI program. The court may also impose other consequences authorized by law, depending on the case.
• Impact on a developing record. For underage drivers, a DUI conviction or even a sustained DMV action can affect college admissions, scholarship eligibility, professional licensing, and employment, not just in the short term, but for years to come.

An effective underage DUI defense begins with scrutinizing every step of the stop, the investigation, and the chemical testing, because at the zero-tolerance threshold, small errors in testing or procedure can make a significant difference.

Our juvenile DUI attorney reviews the full record in every case, including:

• The basis for the traffic stop. Law enforcement must have a lawful reason to stop a vehicle. An unlawful stop can affect the admissibility of all evidence gathered afterward.
• Field sobriety tests. Performance on standardized field sobriety tests is not always a reliable indicator of alcohol use. Nervousness, fatigue, physical conditions, and environmental factors can all affect results.
• Preliminary alcohol screening results. At the zero tolerance threshold of 0.01%, the accuracy and calibration of the screening device are especially important. We examine maintenance records and testing protocols.
• Breath and blood test procedures. Breath test results can be affected by mouth alcohol, device calibration issues, and operator error. Blood test evidence raises questions about collection, storage, chain of custody, and laboratory analysis.
• Whether the correct charge was applied. A case involving a BAC of 0.02% should not be treated the same as one involving a BAC of 0.07%, and neither is the same as a standard DUI charge under Vehicle Code § 23152. Precision in identifying the applicable law matters.

Christopher Lucero’s background as a former Southern California Deputy District Attorney gives us insight into how the prosecution evaluates evidence and builds DUI cases. We use that background to identify weaknesses in the government’s case and develop a defense strategy suited to the specific facts at hand.

The consequences of an underage DUI conviction in Los Angeles County can include license suspension, fines, mandatory alcohol education, probation, community service, and, in serious cases, jail time or felony DUI charges.

The range of penalties depends heavily on the applicable code section, the driver’s BAC, prior offenses, and whether anyone was injured:

• Zero Tolerance violation (BAC of 0.01% or greater under Vehicle Code § 23136): A first violation can result in a one-year driver’s license suspension. A § 23136 violation is an infraction, but the driver may also face separate criminal charges under other applicable DUI statutes if the evidence supports them.
• Vehicle Code § 23140 (BAC of 0.05% or greater): A violation is an infraction and can result in a fine, mandatory DUI program, and a one-year suspension or delay of driving privileges for eligible drivers under 21. A separate DUI charge may also apply if the facts support it.
• Standard DUI (including a BAC of 0.08% or greater or driving while legally impaired): A first-time misdemeanor DUI conviction can carry up to six months in county jail, fines and assessments, DUI education requirements, probation, and driver’s license consequences. The actual penalties depend on the charge, the driver’s history, and the circumstances of the case.
• DUI causing injury: If an underage driver causes bodily injury while driving under the influence, the driver may face charges under California Vehicle Code § 23153. Depending on the circumstances, the charge may be prosecuted as a misdemeanor or a felony, with substantially more severe potential penalties than a standard DUI.
• Repeat offenses: Prior DUI convictions can increase the potential penalties for a subsequent offense. Whether a prior juvenile adjudication affects a later DUI charge or sentence depends on the applicable statute and the circumstances of the earlier case.

Depending on the charge and case outcome, additional conditions such as probation or community service may be imposed where authorized by law. For young drivers in Los Angeles County, these obligations can conflict with school schedules, athletic commitments, and work responsibilities, making early and strategic defense planning essential.

Underage drinking and driving allegations in Los Angeles County carry consequences that extend well beyond a single court appearance. A driver’s license suspension can disrupt transportation, education, and employment. A criminal record, or even a sustained administrative action, can complicate future opportunities at a stage of life when those opportunities matter most.

At Lucero, PC, our underage DUI attorney approaches every juvenile DUI case individually, with attention to the specific charges, the evidence, and what the outcome means for the client’s future. For a free consultation about an underage DUI charge in Los Angeles County or the surrounding area, contact Lucero, PC at 909-503-4856. The sooner we can review the facts, the more options we may be able to pursue.