Victorville Marijuana DUI Attorney

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Last updated: August 18, 2026

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.

How My Rights Law Can Help Defend a Marijuana DUI Charge in Victorville

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:

  • Review the legality of the traffic stop and arrest
  • Analyze police reports, body camera footage, and dashcam video
  • Examine blood testing procedures and laboratory records
  • Challenge Drug Recognition Expert evaluations
  • Identify constitutional or procedural violations
  • Negotiate with prosecutors when appropriate
  • Aggressively represent you at trial if necessary

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

Get a proven California defense team on your side today.

Understanding California Marijuana DUI Laws

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. 

Is Marijuana DUI Different From Alcohol DUI?

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. 

California Vehicle Code § 23152(f)

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. 

What Happens After a Marijuana DUI Arrest?

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:

  1. A law enforcement officer conducts a DUI investigation and makes an arrest.
  2. You may be asked to submit to a chemical test under California's implied consent law. For suspected drug DUI cases, this is generally a blood test. 
  3. You are booked and processed before being released or held in custody, depending on the circumstances.
  4. Prosecutors review the available evidence and determine what charges to file.
  5. Your case proceeds through the criminal court system, where you may have opportunities to challenge the evidence or negotiate a resolution.

Because important legal decisions are made early in the process, speaking with an experienced attorney as soon as possible can be critical.

How Accurate Are Blood Tests in Marijuana DUI Cases?

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:

  • The amount of time between driving and the blood draw
  • How the sample was collected and stored
  • Laboratory testing procedures
  • Whether contamination or handling errors occurred
  • The interpretation of the test results

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.

What Is a Drug Recognition Expert (DRE)?

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:

  • Eye examinations
  • Pulse and blood pressure
  • Muscle tone
  • Coordination and balance
  • Divided-attention tasks
  • Statements made by the driver
  • Overall behavior and appearance

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.

What Are the Penalties for a Marijuana DUI in Victorville, California?

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. 

1st Offense

A first marijuana DUI conviction may result in:

  • Up to 6 months in county jail
  • Fines ranging from $390 to $1,000, plus penalty assessments
  • Three to five years of informal probation
  • Completion of a court-approved DUI education program
  • A driver's license suspension or restricted driving privileges, depending on DMV eligibility
  • Possible ignition interlock device (IID) requirements 

2nd Offense

A second DUI conviction within 10 years may carry:

  • 90 days to 1 year in county jail
  • Increased fines and court costs
  • An extended DUI education program
  • A two-year driver's license suspension
  • Mandatory IID requirements in many cases 

3rd or Subsequent Offense

A third or subsequent DUI conviction within 10 years may result in:

  • 120 days to 1 year in county jail
  • Higher fines and assessments
  • A three-year driver's license revocation for a third offense
  • Extended IID requirements
  • More restrictive probation and other court-ordered conditions 

What Happens to Your Driver's License After a Marijuana DUI?

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.

Can Marijuana DUI Charges Be Reduced or Dismissed?

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:

  • Insufficient evidence of impairment
  • An unlawful traffic stop or arrest
  • Problems with blood testing procedures
  • Inconsistent officer observations
  • Weak or unsupported Drug Recognition Expert opinions
  • Violations of your constitutional rights

Every case is unique, and the available defense strategy depends on the specific facts surrounding your arrest.

Connect with My Rights Law today to get immediate help from experienced defense attorneys
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How Can I Defend Against a Marijuana DUI Charge?

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:

  • You were not impaired while driving.
  • The blood test does not accurately reflect impairment at the time of driving.
  • The traffic stop or arrest violated your constitutional rights.
  • The Drug Recognition Expert's conclusions were unreliable.
  • Medical conditions, fatigue, or other factors affected your appearance or performance.
  • Laboratory errors or improper handling compromised the blood sample.
  • The prosecution cannot prove every element of the offense beyond a reasonable doubt.

An experienced attorney can determine which defenses apply to your case and build a strategy designed to protect your rights.

What Mistakes Should You Avoid After a Marijuana DUI Arrest?

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:

  1. Admitting marijuana use or discussing the case with law enforcement without an attorney.
  2. Posting about the arrest or your case on social media.
  3. Ignoring court notices or DMV deadlines.
  4. Assuming the evidence cannot be challenged.
  5. Waiting too long to speak with an experienced marijuana DUI attorney.

Seeking legal guidance early allows your attorney to protect your rights, preserve important evidence, and begin preparing your defense as soon as possible.

Schedule a Free Consultation With a Victorville Marijuana DUI Attorney

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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