The Legal Cannabis Stop: Odor, Open Container, and the Dogs
At 2340 hours you stop a 2016 Honda Civic on a four-lane state road after it crosses the fog line twice and brakes erratically for no visible reason. The driver, age 24, has bloodshot eyes and slurred speech and fumbles his license onto the floor mat. As the window comes down you smell a strong odor of burnt marijuana. On the center console, in plain view, is an open glass jar holding three partially smoked hand-rolled cigarettes and loose plant material; the front passenger is holding a lit one, which she stubs out when you make eye contact. Asked when he last used cannabis, the driver says, 'Like 20 minutes ago, but it's legal.' Records show a valid license and no warrants. Backup is 6 minutes out; the K9 unit is 10 minutes out.
1. You want to search the passenger compartment and containers. State the legal theory, and explain how lawful adult cannabis possession changes the analysis you would have used five years ago.
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Theory: the automobile exception. With probable cause to believe evidence of a crime or contraband is in the vehicle, you may search the areas and containers where that evidence could be. No warrant is required.
The changed part: odor alone no longer carries you. Adults 21+ may lawfully possess cannabis in Connecticut, so the smell is equally consistent with lawful conduct and is only a factor.
What converts it to probable cause here:
- An open container of cannabis in the passenger compartment (an independent violation).
- A passenger actively consuming cannabis in a moving vehicle (prohibited).
- The driver's admission of use roughly 20 minutes before driving, plus bloodshot eyes, slurred speech, and the observed driving.
Scope: passenger compartment and containers where cannabis could be; the trunk requires PC that evidence is likely there. Say in your report what facts supported PC - never write 'odor of marijuana' as the whole justification.
2. The traffic citation is written and the driver is waiting. The sergeant asks whether you can hold the stop 10 minutes for the K9. What do you do?
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Answer the question behind the question: do you already have PC?
- If yes (as here), the dog is irrelevant. You may search under the automobile exception, or hold briefly while you complete a diligent investigation - but you must actually be investigating, not stalling for a sniff.
- If no, you cannot extend the stop. Rodriguez v. United States: a stop may not be prolonged beyond the time reasonably required to complete its mission absent independent reasonable suspicion. Ten extra minutes for a dog, with nothing more than a lawful-possession odor, is an unlawful seizure and the suppression motion writes itself.
Practical move: conduct the search now if PC exists; if it does not, hand back the license and end the stop. A dog sweep of the exterior is not a search, but you must have the authority to still be there when it happens.
3. The driver shows horizontal gaze nystagmus, misses heel-to-toe, and sways during the walk-and-turn. Outline your next steps and how you will document the impairment case.
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Do not stop at 'he smoked weed.' Cannabis impairment of driving requires the same disciplined proof as alcohol.
- Medical screen and questions: any head injury, diabetes, medications, alcohol, when and how much cannabis, edible vs. smoked (delays and duration differ).
- Standardized tests on a flat, well-lit, dry surface, with the instructions given verbatim and your observations recorded as observations, not conclusions ('stepped off on step 3, raised arms for balance'), plus divided-attention indicators.
- Arrest decision on the totality; then request a DRE evaluation if available, since a drug-recognition opinion is what carries a cannabis DUI.
- Chemical testing: read the implied consent advisement; Connecticut's implied consent covers drugs as well as alcohol. If he refuses, document the refusal verbatim and the exact time, and pursue a warrant for a blood draw rather than dropping the case.
- Report: separate the layers - driving, personal contact, field tests, arrest, advisement, test result - and never let a conclusion stand where a fact belongs. Include the open container and the passenger's use as evidence of the vehicle environment.