A marijuana DUI charge can put your driver's license, criminal record, and future at risk. If you are facing allegations of driving under the influence of cannabis, an experienced Victorville marijuana DUI attorney can help you understand your legal options and build a strong defense.
At My Rights Law Criminal Defense and DUI Lawyers, we represent clients throughout Victorville and San Bernardino County facing marijuana DUI charges under California law. Our attorneys carefully examine every aspect of the prosecution's case and aggressively challenge evidence that does not establish impairment.
Call 760-490-0308 today to schedule a free consultation with an experienced Victorville marijuana DUI attorney.
Marijuana DUI cases often involve complicated scientific evidence and subjective opinions from law enforcement. Unlike alcohol-related DUI cases, prosecutors cannot rely on a specific THC concentration to prove impairment. Instead, they frequently use blood test results, officer observations, and Drug Recognition Expert (DRE) evaluations to support their case.
At My Rights Law Criminal Defense and DUI Lawyers, we carefully examine every stage of the investigation to determine whether the evidence was lawfully obtained and whether it actually demonstrates impairment.
Depending on the circumstances, our legal team may:
Every marijuana DUI case presents different legal issues, and we tailor our defense strategy to the facts surrounding your arrest.
Don't face Marijuana DUI charges alone
California law allows adults to legally possess and use marijuana under certain circumstances, but legalization does not permit impaired driving. Prosecutors must prove that the drug affected your ability to operate a vehicle safely, not simply that marijuana was present in your system.
Yes. Alcohol DUI cases often rely on a driver's blood alcohol concentration because California establishes a legal limit of 0.08% for most drivers. Marijuana DUI cases are different because California has no legal THC threshold that automatically establishes impairment. Instead, investigators evaluate the driver's behavior, physical condition, statements, and other evidence to determine whether marijuana affected the ability to drive safely.
Under California Vehicle Code § 23152(f), it is unlawful to drive while under the influence of any drug, including marijuana. To obtain a conviction, prosecutors must prove that the drug impaired the driver's mental or physical abilities so that they could no longer drive with the caution expected of a reasonably sober person under similar circumstances.
A marijuana DUI arrest begins a legal process that involves more than simply receiving a court date. Understanding what happens next can help you make informed decisions and avoid mistakes that could affect your case.
Although every case is different, the process generally includes:
Because important legal decisions are made early in the process, speaking with an experienced attorney as soon as possible can be critical.
Blood tests are commonly used in marijuana DUI investigations, but they do not directly measure whether someone was impaired while driving. Instead, they identify the presence of THC or its metabolites, which may remain in the body long after the impairing effects of marijuana have subsided. This means a positive blood test does not automatically establish that you were under the influence at the time you were operating the vehicle.
The reliability of blood test evidence may also depend on factors such as:
An experienced marijuana DUI attorney can carefully review the testing process and determine whether the results accurately reflect impairment or whether the evidence can be challenged in court.
A Drug Recognition Expert (DRE) is a law enforcement officer who has received specialized training to evaluate whether a driver is impaired by drugs rather than alcohol. In marijuana DUI cases, prosecutors often rely on a DRE's opinion when there is little or no other evidence of impairment.
During a DRE evaluation, the officer may assess factors such as:
Although DREs receive specialized training, their conclusions are still opinions based on observations rather than definitive scientific proof. An experienced marijuana DUI attorney can examine whether the evaluation was performed correctly, whether alternative explanations exist for the officer's observations, and whether the DRE's conclusions are supported by the evidence.
A marijuana DUI is generally punished under the same California DUI laws that apply to alcohol-related DUI offenses. The penalties depend on your prior DUI convictions, whether anyone was injured, and other aggravating circumstances.
A first marijuana DUI conviction may result in:
A second DUI conviction within 10 years may carry:
A third or subsequent DUI conviction within 10 years may result in:
A marijuana DUI can affect your driving privileges, but DMV consequences are separate from the criminal case.
Depending on the circumstances, you may face a driver's license suspension, restricted driving privileges, or other licensing consequences if you are convicted. Because the outcome of your criminal case may affect your driving privileges, working with an experienced marijuana DUI attorney as early as possible can help protect both your license and your legal rights.
Yes, depending on the circumstances. A marijuana DUI arrest does not automatically lead to a conviction. If the prosecution cannot prove beyond a reasonable doubt that marijuana impaired your ability to drive, your attorney may be able to negotiate reduced charges or seek dismissal of the case.
Factors that may strengthen your defense include:
Every case is unique, and the available defense strategy depends on the specific facts surrounding your arrest.

An effective defense begins with a careful review of the prosecution's evidence. Because marijuana DUI cases often rely on subjective observations and scientific evidence that can be challenged, there may be multiple opportunities to dispute the allegations.
Possible defenses include:
An experienced attorney can determine which defenses apply to your case and build a strategy designed to protect your rights.
The decisions you make after your arrest can affect both your criminal case and your driving privileges. Avoiding common mistakes can help preserve your defense.
After a marijuana DUI arrest, you should avoid:
Seeking legal guidance early allows your attorney to protect your rights, preserve important evidence, and begin preparing your defense as soon as possible.
If you have been arrested for driving under the influence of marijuana, do not assume a conviction is inevitable. An experienced Victorville marijuana DUI attorney can review the evidence, explain your legal options, and develop a defense strategy tailored to your case.
At My Rights Law Criminal Defense and DUI Lawyers, we aggressively defend clients facing marijuana DUI charges throughout Victorville and San Bernardino County. Call 760-490-0308 today to schedule a free consultation with an experienced Victorville marijuana DUI attorney.
This page was written by the My Rights Law Editorial Team and reviewed for legal accuracy by Bobby Shamuilian.
Attorney Shamuilian is the founder and managing partner of My Rights Law and is widely recognized as a legal authority, frequently appearing as a legal analyst and TV pundit on national news outlets.
He has earned a perfect “10.0 – Top Attorney” rating on AVVO and a “10.0” rating on Justia, and has been named among the “Top 40 Under 40” and the “Top 100 Trial Lawyers” by The National Trial Lawyers.
With his proven expertise and dedication, Mr. Shamuilian is committed to protecting your rights and achieving the best possible outcome for your case.
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