You’ve got probable cause on the motorcycle. But it’s parked up by the house, under a tarp. Collins v. Virginia says the car-search exception doesn’t beam you past the home’s protected ground.
What did Collins v. Virginia decide?
The automobile exception does not authorize a warrantless entry onto the curtilage of a home to search a vehicle. Probable cause on the vehicle is not enough — officers can’t cross the constitutionally protected area around the home to reach the car without a warrant or a separate exception.
Collins v. Virginia, 584 U.S. 586 (2018) — read the opinion on CourtListener.
What does Collins v. Virginia allow?
- Searching a readily mobile vehicle under the automobile exception with probable cause when it’s in a public place or otherwise not on the home’s curtilage
- Approaching the home by the ordinary route a visitor would use (a knock-and-talk)
What does it NOT allow?
- Walking up the driveway into the curtilage to search a vehicle — even with probable cause on the car — without a warrant
- Using the automobile exception as a workaround for the home’s curtilage protection
How it plays out on the street
Probable cause on a car doesn’t punch a hole through the home’s protected zone. If the vehicle is parked on the curtilage — the driveway right by the house, especially if enclosed or covered — get a warrant or find a separate exception before you enter to search it. This is the federal floor; states can and do draw curtilage lines differently.
Frequently asked questions
Can I search a car parked in a driveway under the automobile exception?
Not if the driveway is part of the home’s curtilage. Collins requires a warrant or a separate exception to enter the curtilage, even when you have probable cause on the vehicle.
What counts as curtilage?
The area immediately surrounding a home that’s treated as part of it. In Collins, the vehicle was parked in a partially enclosed portion of the driveway next to the house, under a cover.
Related cases
- Arizona v. Gant (2009): Can Police Search Your Car After Arrest?
- Riley v. California (2014): Can Police Search Your Phone After Arrest?
- Kentucky v. King (2011): Exigent Circumstances After a Knock
Carry the rule, not the guesswork. Every case in StreetSense is broken down like this — bottom line, limits, and the exact citation — verified against the real opinion and available fully offline on shift. Start the free trial.
StreetSense is an educational reference for law enforcement, not legal advice. Federal cases set the floor — your state constitution, statutes, and department policy can impose stricter limits. Always follow your state’s rule and your agency’s policy.