Michigan v. Long
JUSTICE O’CONNOR delivered the opinion of the Court.
In Terry v. Ohio, 392 U. S. 1 (1968), we upheld the validity of a protective search for weapons in the absence of probable cause to arrest because it is unreasonable to deny a police officer the right “to neutralize the threat of physical harm,” id. at 392 U. S. 24, when he possesses an articulable suspicion that an individual is armed and dangerous. We did not, however, expressly address whether such a protective search for weapons could extend to an area beyond the person in the absence of probable cause to arrest. In the present case, respondent David Long was convicted for possession of marihuana found by police in the passenger compartment and trunk of the automobile that he was driving. The police searched the passenger compartment because they had reason to believe that the vehicle contained weapons potentially dangerous to the officers. We hold that the protective search of the passenger compartment was reasonable under the principles articulated in Terry and other decisions of this Court. We also examine Long’s argument that the decision below rests upon an adequate and independent state ground, and we decide in favor of our jurisdiction.
I
Deputies Howell and Lewis were on patrol in a rural area one evening when, shortly after midnight, they observed a car traveling erratically and at excessive speed. [ Footnote 1 ] The officers observed the car turning down a side road, where it swerved off into a shallow ditch.