Fighting Marijuana DUI Charges in Fullerton, CA Now

Why marijuana DUI cases are different and defensible

Cannabis affects people differently, and California does not set a per se THC number that automatically proves impairment. Prosecutors must still show your ability to drive was actually impaired by THC or another drug. That creates opportunities to challenge the stop, the investigation, and the science the state relies on. See the California Office of Traffic Safety’s overview on cannabis and driving.

What California law prohibits

Under Vehicle Code § 23152, it is unlawful to drive under the influence of any drug, including cannabis (§ 23152(f)), or under the combined influence of alcohol and drugs (§ 23152(g)). Unlike alcohol, there is no statutory THC limit that by itself establishes a violation, so the government often relies on officer observations, driving pattern, and toxicology to prove actual impairment.

How police investigate marijuana DUI

Typical steps include the traffic stop, questioning, field sobriety tests, and a chemical test. California’s implied consent law requires a chemical test after a lawful DUI arrest; refusing can trigger driver’s license consequences. See Vehicle Code § 23612. Breath testing measures alcohol only; for suspected drug impairment, officers will generally request a blood test (urine is used only in limited circumstances authorized by law). Officers may also call a Drug Recognition Expert (DRE). Like any expert testimony, a DRE’s opinions can be challenged in court.

DMV license consequences and the hearing deadline

A DUI arrest triggers two tracks: a criminal case in court and a separate DMV administrative action that can suspend your driving privilege. You generally have 10 days from the arrest or receipt of the suspension notice to contact the DMV and request an Administrative Per Se (APS) hearing to contest the suspension. If you miss the deadline, a suspension can begin automatically. See the DMV’s APS guidance: DMV — DUI Arrests: APS.

Common defense strategies in cannabis DUI cases

• The stop: Was there reasonable suspicion to pull you over?
• The arrest: Was there probable cause beyond generalized observations like red eyes or nervousness?
• Field sobriety tests: Were they administered and interpreted properly, and are they reliable indicators of cannabis impairment?
• Toxicology: Were blood samples collected, stored, and tested according to accepted protocols? Do results reflect active impairment versus prior use or inactive metabolites?
• Medical and tolerance factors: Do lawful prescriptions, medical conditions, or regular cannabis use explain observed signs without indicating impairment?
• Implied consent warnings: Were you properly advised of testing obligations and the consequences of refusal?

What penalties can look like

Penalties for a marijuana DUI can include probation, fines and assessments, a DUI education program, license restrictions or suspension, and in some cases jail—especially with prior DUIs or an accident. Outcomes depend on the facts and your record. Early intervention can improve options such as charge reductions or alternative dispositions. See California Courts Self-Help — DUI and the penalty provisions that apply to violations of § 23152 in Vehicle Code §§ 23536 et seq.

Fullerton and Orange County local process

Marijuana DUI cases arising in Fullerton are generally filed in the Orange County Superior Court. Many North County cases are heard at the North Justice Center in Fullerton. Procedures, calendars, and clerk information are available on the court’s site: Orange County Superior Court — North Justice Center. Local knowledge of courtroom practices, filing deadlines, and available programs can be critical.

What to do now

• Do not ignore the DMV notice—there is a short window (generally 10 days) to request a hearing to protect your license.
• Write down everything you remember about the stop, any statements, testing, and your medical conditions or medications.
• Avoid discussing your case on social media.
• Consult a DUI defense attorney quickly to preserve evidence, request the DMV hearing, and start challenging the case. Contact us to get started.

FAQ

Is there a legal THC limit for drivers in California?

No. California has no per se THC limit. Prosecutors must prove actual impairment.

Can I refuse a blood test in a marijuana DUI stop?

After a lawful DUI arrest, implied consent laws require a chemical test. Refusal can trigger enhanced license penalties and other consequences.

Will a medical marijuana card help my case?

Lawful use does not excuse impaired driving, but medical conditions and tolerance can affect observed signs and may support defenses.

How soon will my license be suspended?

Without a timely DMV hearing request, an administrative suspension can begin quickly. Act within 10 days of arrest or notice.

Do I need a lawyer for a first-time marijuana DUI?

Yes. Drug DUI cases are evidence-intensive, and early counsel can protect your license and build defenses.

Sources

• California Vehicle Code § 23152 (including subdivisions (f) and (g))
• California Office of Traffic Safety — Cannabis and Driving
• California Vehicle Code § 23612 (Implied Consent)
• California DMV — DUI Arrests: Administrative Per Se (APS)
• California Courts Self-Help — DUI
• California Vehicle Code §§ 23536 et seq. (Penalties for § 23152)
• Orange County Superior Court — North Justice Center

Disclaimer

This blog is for general information only and is not legal advice. Reading it does not create an attorney-client relationship. Laws and procedures change, and outcomes depend on specific facts. Consult a qualified California attorney about your situation.