Whether a driver's general consent to search an automobile for narcotics may reasonably include permission to open a closed paper bag found inside the car.
Holding
Yes. A general, unqualified consent to search a car for narcotics ordinarily permits an officer to open containers in the car that could reasonably hold narcotics, including the closed paper bag here.
Reasoning
The Fourth Amendment's touchstone is reasonableness, and consensual searches are reasonable when conducted within the scope of the consent given. The scope of consent is measured objectively: the question is what a typical reasonable person would have understood from the exchange between the officer and the suspect, not what either party may privately have intended.
The stated object of this search defined its permissible scope. The officer told Jimeno that he believed narcotics were in the car and sought permission to search for them. Jimeno gave permission to search the car without expressly restricting the places or items the officer could examine.
It was objectively reasonable for the officer to conclude that consent to search the car for narcotics included consent to inspect a paper bag on the floorboard. Drugs are commonly carried in containers rather than left openly exposed on a vehicle's floor or other interior surfaces. Searching only visible parts of the car would therefore not ordinarily accomplish the authorized search for narcotics.
The Court rejected a rule requiring officers to obtain separate, container-by-container consent whenever they encounter a closed container during a consensual car search. Such a rule adds a formality that the Fourth Amendment's objective-reasonableness standard does not require. A person remains free to limit consent expressly, but no extra authorization is necessary when the original consent would reasonably be understood to cover the container.
A closed paper bag differs from a locked briefcase that officers would have to pry open. It may be unreasonable to infer consent to break into a locked briefcase merely from consent to search a trunk, but opening an ordinary closed paper bag that could contain the stated object of the search falls within the objectively reasonable scope of Jimeno's general consent.