Is DUI a Drug Offense?

Understanding the Overlap Between DUI and Drug Charges

Driving under the influence (DUI) is most commonly associated with alcohol, but it can also involve drugs. In fact, DUI laws encompass impairment by any substance—legal or illegal—that affects a driver’s ability to operate a vehicle safely. So, is DUI considered a drug offense? The answer depends on the specifics of the case.


What Is a DUI?

A DUI charge arises when a driver operates a motor vehicle while impaired by:


  • Alcohol.
  • Illegal drugs (e.g., marijuana, cocaine, methamphetamine).
  • Prescription drugs (even if legally prescribed, such as painkillers or sedatives).
  • Over-the-counter medications (if they impair driving ability).


When Is a DUI a Drug Offense?

A DUI becomes a drug offense when the impairment is caused by any controlled substance. The law does not distinguish between recreational drugs, illegal substances, or medications taken as prescribed; what matters is the substance's effect on your ability to drive.


  • Illegal Drugs: Operating a vehicle while under the influence of drugs like heroin, cocaine, or methamphetamines is both a DUI and a drug offense.
  • Prescription Drugs: If a driver is impaired by medication, even with a valid prescription, they can still face DUI charges.
  • Marijuana: Driving while impaired by marijuana, whether recreational or medicinal, is treated as a drug-related DUI in most states.


How Are Drug-Related DUIs Detected?

Unlike alcohol-related DUIs, where blood alcohol content (BAC) is measured, detecting drug impairment is more complex. Law enforcement officers use a combination of:


  • Field Sobriety Tests (FSTs): Tests that assess coordination, balance, and cognitive function.
  • Drug Recognition Experts (DREs): Specially trained officers who evaluate drivers for signs of drug impairment.
  • Chemical Tests: Blood or urine tests to detect the presence of drugs.


Penalties for Drug-Related DUIs

The penalties for a drug-related DUI are often similar to those for alcohol-related DUIs and may include:


  • Fines and court fees.
  • Jail time or probation.
  • Driver’s license suspension or revocation.
  • Mandatory participation in drug education or rehabilitation programs.
  • Installation of an ignition interlock device (IID).


In some cases, a drug-related DUI may result in additional charges, such as possession of controlled substances or paraphernalia, which can increase penalties.


Is a Drug-Related DUI a Misdemeanor or Felony?

The severity of a drug-related DUI charge depends on several factors:


  • First Offense: Typically charged as a misdemeanor.
  • Repeat Offenses: Subsequent DUIs often result in felony charges.
  • Aggravating Circumstances: DUI with a minor in the vehicle, causing injury or death, or driving with extremely high levels of impairment may lead to felony charges.


How to Defend Against a Drug-Related DUI Charge

If you are charged with a drug-related DUI, a skilled attorney can explore potential defenses, including:


  • Improper Traffic Stop: Challenging whether the officer had reasonable suspicion to pull you over.
  • Faulty Testing Procedures: Questioning the accuracy of chemical tests or the qualifications of the drug recognition expert.
  • Lack of Impairment: Arguing that the detected substance did not impair your ability to drive.


Key Takeaways

While DUI and drug offenses are distinct legal categories, there is significant overlap when drug use leads to impaired driving. Drug-related DUIs carry serious consequences and can affect your driving record, freedom, and future.


If you’re facing a drug-related DUI charge, having an experienced SMITH | ASHCRAFT attorney on your side is crucial. We can help protect your rights, challenge the evidence against you, and work toward the best possible outcome.


Contact us today for a confidential consultation.

Have a question about your situation?



We’re here to help!

Your legal journey starts with a conversation. At SMITH | ASHCRAFT, we’re here to listen, understand your concerns, and help you navigate the next steps with confidence.  Schedule a consultation today and take the first step toward a clear path forward.

Schedule Your Consultation

Share Article

February 13, 2025
Going through a divorce on Valentine’s Day? Learn about the emotional and legal steps to take, from self-care to asset division, child custody, and securing your future.
separation and divorce, understanding the differences
January 9, 2025
Explore the differences between separation and divorce in Virginia, covering legal implications, agreements, and guidance for your next steps.

Contact SMITH | ASHCRAFT Now

We are ready to fight for your legal matters.

*Please note, submitting this form does not create an attorney-client relationship.

Share by: