Orange County Marijuana DUI Attorney

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Last updated: August 18, 2026

A marijuana DUI charge does not automatically mean a conviction. An experienced Orange County marijuana DUI attorney can evaluate the evidence, protect your rights, and build a strong defense against the allegations.

At My Rights Law Criminal Defense and DUI Lawyers, we defend clients throughout Orange County facing marijuana DUI charges. Our attorneys carefully examine every detail of the investigation, challenge unreliable evidence, and pursue the best possible outcome in every case. 

Call 714-881-2207 today to schedule a free consultation with an experienced Orange County marijuana DUI attorney.

Facing Marijuana DUI charges?

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

A marijuana DUI charge requires more than simply proving that marijuana was present in your system. Prosecutors must establish that the drug impaired your ability to drive safely, often relying on a combination of officer observations, field sobriety tests, chemical testing, and other evidence. At My Rights Law Criminal Defense and DUI Lawyers, we thoroughly investigate every aspect of your case to determine whether the prosecution's evidence can withstand scrutiny.

Depending on the circumstances, our legal team may:

  • Review whether the traffic stop and arrest were lawful
  • Analyze body camera footage, dashcam video, and police reports
  • Examine blood testing procedures and laboratory results
  • Challenge Drug Recognition Expert (DRE) evaluations
  • Identify constitutional or procedural violations
  • Negotiate with prosecutors when appropriate
  • Aggressively represent you at trial when necessary

Every marijuana DUI case is different, and we develop a defense strategy tailored to the facts surrounding your arrest.

Understanding California Marijuana DUI Laws

California law allows adults to legally use marijuana under certain circumstances, but driving while impaired by cannabis remains a criminal offense. Unlike alcohol DUI cases, marijuana DUI prosecutions focus on whether the drug actually affected the driver's ability to operate a vehicle safely rather than the amount of THC found in the body.

What Makes a Marijuana DUI Different?

Marijuana DUI cases differ from alcohol DUI cases because there is no legal THC concentration that automatically establishes impairment. Instead, investigators consider the totality of the evidence, including your driving behavior, physical condition, field sobriety test performance, and other observations made during the investigation. 

Because marijuana affects every person differently, proving impairment is often more complicated than simply introducing a chemical test result.

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 marijuana impaired your mental or physical abilities to such a degree that you could no longer drive with the caution expected of a reasonably sober driver under similar circumstances.

How Do Prosecutors Try to Prove Marijuana Impairment?

Unlike alcohol DUI cases, prosecutors usually cannot rely on a single piece of evidence to prove a marijuana DUI. Instead, they build their case by combining multiple forms of evidence in an attempt to show that your driving ability was impaired.

Evidence commonly presented may include:

  • The officer's observations during the traffic stop
  • Your driving behavior before being stopped
  • Statements made during the investigation
  • Field sobriety test performance
  • Drug Recognition Expert (DRE) evaluations
  • Blood test results showing the presence of THC
  • Body camera or dashcam footage

Each piece of evidence has limitations and should be carefully examined. An experienced defense attorney can identify inconsistencies, challenge unreliable conclusions, and determine whether the prosecution can actually prove impairment beyond a reasonable doubt.

Can You Be Charged Even If You Used Marijuana Hours Earlier?

Yes. A person may still be arrested even if marijuana was consumed hours before driving. However, using marijuana earlier in the day does not automatically mean you were impaired while operating a vehicle.

THC can remain detectable in the bloodstream long after its impairing effects have diminished, making the timing of marijuana use an important issue in many DUI cases. Because a blood test cannot determine exactly when impairment occurred, prosecutors often rely on additional evidence, such as officer observations and driving behavior, to support their case.

An experienced Orange County marijuana DUI attorney can examine whether the available evidence actually establishes impairment at the time you were driving or merely shows prior marijuana use.

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What Are the Penalties for a Marijuana DUI in Orange County?

A marijuana DUI is generally prosecuted under the same California DUI laws that apply to alcohol-related DUI offenses. The penalties depend on factors such as your prior DUI convictions, whether anyone was injured, and the specific facts of your case. A conviction can affect your freedom, driving privileges, finances, and criminal record. 

First 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
  • Driver's license suspension or restricted driving privileges, depending on DMV eligibility
  • Possible ignition interlock device (IID) requirements in qualifying cases 

Second Offense

A second DUI conviction within 10 years may carry:

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

Third 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
  • Extended IID requirements
  • Enhanced probation conditions and other court-ordered penalties

Can You Refuse a Chemical Test?

In California, drivers are generally subject to the state's implied consent law, which means that by driving on California roads, you agree to submit to a chemical test if you are lawfully arrested for driving under the influence. 

In marijuana DUI cases, law enforcement will typically request a blood test because breath tests cannot detect the presence of marijuana or other drugs. Refusing a required chemical test can lead to additional legal and administrative consequences beyond the underlying DUI charge.

Depending on the circumstances, refusing a chemical test may result in:

  • A longer driver's license suspension imposed by the California DMV
  • Enhanced penalties if you are convicted of DUI
  • The prosecutor using your refusal as evidence during your criminal case
  • Additional challenges when defending the charges

Whether a refusal was lawful and whether the officer properly advised you of the consequences can become important issues in your defense. An experienced Orange County marijuana DUI attorney can review the circumstances of your arrest to determine whether law enforcement complied with California law and whether the refusal evidence can be challenged.

Can Prescription or Medical Marijuana Affect Your DUI Case?

Yes. Legally obtaining or using marijuana does not prevent prosecutors from filing DUI charges if they believe the drug impaired your ability to drive safely. Whether the marijuana was purchased recreationally or recommended for medical purposes, California law focuses on impairment, not how the marijuana was obtained.

What Can Affect the Outcome of a Marijuana DUI Case?

No two marijuana DUI cases are identical. The outcome often depends on the strength of the prosecution's evidence and whether that evidence can withstand legal scrutiny.

Factors that may influence your case include:

  • The reason for the traffic stop
  • The quality of the officer's investigation
  • Body camera or dashcam footage
  • The timing of any blood test
  • Drug Recognition Expert (DRE) evaluations
  • Witness statements
  • Your driving behavior before the stop
  • Whether you have prior DUI convictions

A thorough review of these factors can reveal weaknesses in the prosecution's case and identify opportunities to challenge the charges.

How Can I Defend Against a Marijuana DUI Charge?

The best defense depends on the facts surrounding your arrest. Because marijuana DUI cases frequently rely on subjective observations and circumstantial evidence, prosecutors may have difficulty proving impairment beyond a reasonable doubt.

Possible defenses include:

  • You were not impaired while driving.
  • The traffic stop or arrest violated your constitutional rights.
  • The blood test does not accurately establish impairment at the time of driving.
  • The Drug Recognition Expert's conclusions were unreliable.
  • Field sobriety tests were improperly administered or interpreted.
  • Medical conditions or other factors affected your appearance or performance.
  • The prosecution cannot prove every element of the offense beyond a reasonable doubt.

An experienced marijuana DUI attorney can identify the defenses that best apply to your case and work to obtain the most favorable outcome possible.

Why You Should Speak With a Marijuana DUI Attorney Immediately

The hours and days following a marijuana DUI arrest can be critical. Evidence may become more difficult to obtain, witness memories can fade, and important legal deadlines may apply. Speaking with an attorney early gives you the opportunity to understand your rights and begin preparing your defense before the prosecution's case moves forward.

Early legal representation may also help preserve surveillance footage, obtain police reports and laboratory records, identify weaknesses in the investigation, and ensure that important deadlines related to your case are not missed. Taking prompt action can place you in a stronger position as your case progresses.

Connect with My Rights Law today to get immediate help from experienced defense attorneys
Schedule A free confidential Consultation

Schedule a Free Consultation With an Orange County Marijuana DUI Attorney

A marijuana DUI charge does not have to determine your future. An experienced Orange County marijuana DUI attorney can evaluate 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 throughout Orange County against marijuana DUI charges. Call 714-881-2207 today to schedule a free consultation with an experienced Orange County 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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