In California v. Carney , the United States Supreme Court held that a motor home

Recreational vehicle

Recreational vehicle or RV is, in North America, the usual term for a Motor vehicle or trailer equipped with living space and amenities found in a home.-Features:...

 was subject to the automobile exception to the warrant requirement because it was readily movable.

Background

Carney was suspected of trading marijuana for [sexual contacts]. Police were watching him, and a youth he was talking to walked with him to his motor home on a parking lot in downtown San Diego. Both of them entered, and the youth emerged a little over an hour later. The officers stopped him, and he told them that Carney traded him marijuana for sexual contacts. The officers went back to the motor home with the youth and had him knock on the door. Carney opened the door and stepped out. One officer entered without a warrant and searched the vehicle, finding marijuana. Carney's motions to suppress were denied by the magistrate and trial court. The California Court of Appeal affirmed, finding that the automobile exception applied to a motor home. The California Supreme Court reversed, holding that there is a greater expectation of privacy in a motor home when also used for living quarters, so the automobile exception did not apply.

Opinion of the Court

The Supreme Court reversed. The capacity to be 'quickly moved' was clearly the basis of the holding in Carroll, and our cases have consistently recognized ready mobility as one of the principal bases of the automobile exception. In addition, '[b]esides the element of mobility, less rigorous warrant requirements govern because the expectation of privacy with respect to one's automobile is significantly less than that relating to one's home or office.' The Court noted that the automobile exception has been applied several times by the Court even when the vehicle is no longer readily movable, if it was readily movable at the time of seizure.

This vehicle, the Court found, had all the attributes of ready mobility to satisfy the automobile exception. It was on a downtown parking lot, a place not regularly used for residential purposes--temporary or otherwise. It could still quickly be driven away. Also, it had the reduced expectation of privacy of a vehicle. [T]he vehicle was so situated that an objective observer would conclude that it was being used not as a residence, but as a vehicle. The Court declined to draw distinctions as to which types of motor homes would or would not be subject to the automobile exception.

Dissent

Justices Stevens, Brennan, and Marshall dissented on two grounds. First of all, the case should never have been heard at all because of a lack of development of the law and conflicts in the appellate courts. Second, the Court should have found a heightened expectation of privacy in Carney's motor home because of the nature of motor home living.