Carroll v. United States first recognized the automobile exception to the warrant requirement.

Carroll v. United States first recognized the automobile exception to the warrant requirement.

• A. US v Place
• B. Maryland v Dyson
• C. Chaplinsky v. New Hampshire
• D. Carroll v. United States

Answer: (D)

The automobile exception to the warrant requirement is the concept at play here. It allows police to search a vehicle without a warrant if there is probable cause to believe the vehicle contains evidence of a crime, based on the practicality that cars can be quickly moved and evidence could be lost or hidden in transit. Carroll v. United States (1925) established this doctrine, recognizing that the mobility of vehicles creates circumstances where obtaining a warrant beforehand would be impractical, so a search may proceed with probable cause. The scope of the search can extend to the whole vehicle and any containers within it, as long as the probable cause supports that it contains something incriminating. The other choices deal with different Fourth Amendment issues—such as dog-sniff/seizure questions or topics like free speech—not with the origin of the automobile exception, so they do not establish the initial principle.

The automobile exception to the warrant requirement is the concept at play here. It allows police to search a vehicle without a warrant if there is probable cause to believe the vehicle contains evidence of a crime, based on the practicality that cars can be quickly moved and evidence could be lost or hidden in transit. Carroll v. United States (1925) established this doctrine, recognizing that the mobility of vehicles creates circumstances where obtaining a warrant beforehand would be impractical, so a search may proceed with probable cause. The scope of the search can extend to the whole vehicle and any containers within it, as long as the probable cause supports that it contains something incriminating. The other choices deal with different Fourth Amendment issues—such as dog-sniff/seizure questions or topics like free speech—not with the origin of the automobile exception, so they do not establish the initial principle.