--- title: "Providence Marijuana DUI Attorney" description: "Providence Marijuana DUI Attorney Rory Munns Providence has a zero-tolerance policy toward marijuana DUI. How do police determine whom to test for a marijuana DUI? Often, officers will initially make..." url: https://duiattorneyrhodeisland.com/providence-marijuana-dui-attorney/ date: 2019-11-04 modified: 2026-06-19 author: "Criminal Defense Attorney Rory Munns" image: https://duiattorneyrhodeisland.com/wp-content/uploads/2026/05/providence-marijuana-dui-attorney.jpg type: page lang: en --- # Providence Marijuana DUI Attorney ## Providence Marijuana DUI Attorney Rory Munns !(https://duiattorneyrhodeisland.com/wp-content/uploads/2019/11/Providence-Marijuana-DUI-Attorney-Rory-Munns-300x201.jpg) Providence has a zero-tolerance policy toward marijuana DUI. How do police determine whom to test for a marijuana DUI? Often, officers will initially make that determination by observing the drivers' behavior. In Rhode Island, drivers are considered to have given consent to a chemical test of breath, blood, and urine by simply being on the road. If the police have reason to believe that the operator of a vehicle may be under the influence of marijuana, he or she may ask the driver to provide a lab sample that might then be tested for THC and its metabolites. Unlike an alcohol DUI with its 0.08 percent BAC trigger, Rhode Island has no statutory per se THC blood limit, so the case turns on actual impairment evidence rather than a single test number. ## Implied Consent Laws and Marijuana DUI The more news is that (https://duiattorneyrhodeisland.com/rhode-island-dui-laws/) are written so that it is illegal for an individual to operate a vehicle while under the influence of a controlled substance; marijuana is still a controlled substance, and it is illegal to possess marijuana while operating a vehicle, even though Rhode Island has decriminalized marijuana and legalized it for medicinal use. The one exception is if the driver is legally registered to use medical marijuana. An individual registered for medicinal use is not considered to be under the influence merely due to having marijuana metabolites in his or her system. Rhode Island law actually allows the state to file two distinct charges in marijuana cases, an "under the influence" charge that requires proof of impairment and a "controlled substance present in blood" charge that requires only a positive THC test. The two charges carry different penalty ranges, covered below. The Implied Consent laws of Rhode Island mean that a driver is required to submit a sample if requested by law enforcement. If the chemical test reveals any trace of marijuana, the driver will be subject to a marijuana DUI. Unlike an alcohol DUI, where there is a test for a driver's blood-alcohol level, things can get complicated with marijuana DUI because marijuana is fat-soluble and the time THC stays in an individual's body depends upon many factors. This means that drivers who are fully capable of operating an auto may fail the (https://www.chadbanklaw.com/rhode-island-marijuana-dui/). ## Repercussions for Marijuana DUI in Rhode Island Punishments for marijuana DUI are determined by a previous marijuana DUI. A first-time offense means the possibility of being subject to a $500 fine, community service of 20 to 60 hours, up to one year of jail time, driving license suspension of 3 to 18 months, and possibly a mandatory driving course or a drug treatment program. A second marijuana DUI offense could be subject to a $1,000 fine, jail time up to one year, and a suspended driver's license for two years. For a third-time offense, the fine can range from $1,000 to $5,000, jail time of 3 to 5 years, a suspended driver's license for three years, and the possibility of having your vehicle seized and sold. As of July 1, 2025, Rhode Island extended the lookback period for repeat DUI offenses from 5 years to 10 years, so a prior conviction from up to a decade ago can now bump a new charge to second or third offense status. ## No Per Se THC Limit: How Rhode Island Differs from Other States Rhode Island has not adopted a numeric cutoff for THC in blood. Some states have. Colorado, for example, sets a per se limit of 5 nanograms of THC per milliliter of blood. A Colorado driver at or above that level is automatically considered impaired. Rhode Island takes a different path called an effects-based standard. The focus is on whether the driver's ability to operate a vehicle was actually diminished, not on a specific blood test number. This standard is sometimes described as zero tolerance, but that label can mislead. While any detectable trace of THC can be used as evidence in a DUI case, it does not automatically lead to a conviction. Prosecutors still have to show that the driver was under the influence. For registered medical marijuana patients, Rhode Island law explicitly states that the mere presence of marijuana metabolites in their system does not classify them as under the influence solely because of those metabolites. That medical exemption is one of the most important pieces of leverage Rory uses in defending registered patients. ## Two Charges: Under the Influence vs Controlled Substance Present in Blood Rhode Island law splits marijuana DUI into two tracks. The "under the influence of a controlled substance" track requires proof that marijuana actually impaired your driving. The "controlled substance present in blood" track requires only a positive blood test for THC. Both can result in a DUI conviction and license suspension, but the penalty ranges differ. | Charge Type | First Offense | Second Offense (within lookback) | Third or Subsequent | | --- | --- | --- | --- | | Under the Influence of a Controlled Substance | $500 fine, 20 to 60 hours community service, up to 1 year jail, 3 to 18 month license suspension | Mandatory $1,000 fine, 6 months to 1 year jail, 2-year license suspension | $1,000 to $5,000 fine, 3 to 5 years jail, 3-year license suspension | | Controlled Substance Present in Blood | $100 to $300 fine, 10 to 60 hours community service, up to 1 year jail, 30 to 180 day license suspension | Penalties escalate; consult Rory for the specific exposure on a second charge | Penalties escalate; consult Rory for the specific exposure on a third charge | The two-track structure matters for defense work. A driver charged under both tracks may have stronger defenses against the "under the influence" charge while still facing the "present in blood" charge. Rory negotiates these cases with that distinction in mind. ## Defense Strategies for a Rhode Island Marijuana DUI Because Rhode Island requires proof of impairment for the "under the influence" charge, the defense often focuses on the absence of reliable impairment evidence. Several defense angles come up over and over: **Challenging the initial traffic stop.** Police must have reasonable suspicion of a traffic violation or criminal activity to pull a driver over. If the officer lacked a valid reason for the stop, any evidence gathered after may be suppressed and the case can be dismissed. **Attacking field sobriety test reliability.** Field sobriety tests were designed to detect alcohol impairment, not marijuana intoxication. The horizontal gaze nystagmus, walk-and-turn, and one-leg stand tests do not reliably indicate marijuana impairment. Fatigue, anxiety, uneven pavement, and physical conditions can produce false clues regardless of substance. **Questioning Drug Recognition Expert (DRE) qualifications.** When police suspect marijuana impairment, they often call a DRE to perform a 12-step evaluation. DRE evaluations can be subjective and error-prone. Whether the DRE followed protocol, the timing of the evaluation, and the officer's qualifications are all fair game for challenge. **Challenging chemical test results and chain of custody.** Blood or urine tests for THC are not always reliable. THC can remain in the body for days or weeks after use, so a positive test does not prove impairment at the time of driving. Errors in collection, storage, or handling can break the chain of custody and get test results excluded. **Medical marijuana patient protections.** A registered medical marijuana patient cannot be considered under the influence solely because of metabolite presence. If the only evidence is a positive urine test showing inactive metabolites, the state cannot rely on that alone to prove impairment. **Lack of observable impairment.** If the driver performed normally on field sobriety tests, did not exhibit unusual behavior, and drove safely before the stop, the defense can argue no impairment existed. Body camera footage and dashcam video often help show that the driver was not weaving, speeding, or driving dangerously. ## No Sobriety Checkpoints in Rhode Island Rhode Island does not use sobriety checkpoints. The Rhode Island Supreme Court barred them in the 1989 case Pimental v. Department of Transportation. Police must have reasonable suspicion of impairment to stop a vehicle, which means an illegal traffic stop is a more common defense in Rhode Island than in many other states. If the officer pulled the driver over without a valid reason, the entire case may collapse on a motion to suppress. ## What's Coming: Senate Bill S2970 In March 2026, Rhode Island Senate Bill S2970 was introduced. The bill proposes amendments to the state's DUI laws, including penalties for the presence in the blood of any scheduled controlled substance and new ignition interlock requirements. As of June 2026 the bill is not yet law. It remains a proposal that could change how marijuana DUI cases are handled. If passed, it could shift away from the current effects-based standard and add more specific consequences tied to the presence of controlled substances in the blood. Anyone facing a marijuana DUI charge should ask Rory about the current status before relying on either the old or proposed framework. ## A Leading Providence Marijuana DUI Attorney Can Help If you find yourself facing a Providence marijuana DUI, then you need an attorney who understands the system and has successfully defended many Providence Marijuana DUI cases. Please call 401-573-2265 to find out more about how I can help you. I am here to protect your rights, 24/7. Our office is situated directly across the street from the courthouse in Providence to help provide ease, peace of mind, convenience, and affordable representation, and our law firm has been consistently rated one of the top criminal defense firms in Providence DUI. Rorys Downtown Providence office is conveniently located next the (https://www.courts.ri.gov/Courts/Pages/default.aspx) at 127 Dorrance St Providence, RI 02903. Providence Marijuana DUI Attorney Office ### Providence Marijuana DUI Attorney Criminal Defense Attorney Rory Munns !(https://duiattorneyrhodeisland.com/wp-content/uploads/2019/11/Criminal-Defense-Attorney-Rory-Munns-Logo-New-copy.jpg) 127 Dorrance St Providence , RI 02903 Phone: 401-573-2265