In the context of vehicle searches, the Carroll doctrine allows warrantless searches when which condition exists?

• A. The vehicle is moving
• B. The vehicle is mobile and probable cause exists to search
• C. Only if occupant consents
• D. It requires a warrant

Answer: (B)

Under Carroll, a warrantless vehicle search is allowed when there is probable cause to search and the vehicle is readily mobile. The reason is that cars can be moved quickly, potentially taking evidence with them, so officers may act without a warrant to prevent the loss or destruction of evidence. If there’s no probable cause, or if the vehicle isn’t in a condition that presents a mobility risk, a warrant would typically be required. Consent or other exceptions can also apply, but the Carroll rule specifically hinges on probable cause plus the vehicle’s mobility.