Under the vehicle exception, when may police search a vehicle without a warrant?

• A. During a traffic stop for any reason.
• B. When there is consent.
• C. Whenever the officer desires.
• D. When there is probable cause to believe contraband is in the vehicle.

Answer: (C)

The vehicle search without a warrant is allowed only when police have probable cause to believe that the vehicle contains contraband or evidence. This reflects the idea that cars are mobile and people have a lesser expectation of privacy in them, so a warrant isn’t always practical if there’s solid reason to think something illegal is inside. The search can cover any part of the vehicle where the contraband or evidence could be found, including containers, as long as the probable cause supports it.

Consent is a separate rule: if the driver or occupant agrees to a search, police may search without a warrant based on that consent. A routine traffic stop by itself doesn’t automatically permit a vehicle search—there must be probable cause (or another valid exception) for a warrantless search to occur.

So, the best condition is: there is probable cause to believe contraband is in the vehicle.