Epperson was convicted in the United States Magistrates Court, Alexandria, Virginia, of violating 49 U.S.C.A. § 1472(0 by attempting to board an aircraft engaged in interstate commerce while carrying a concealed dangerous weapon. After unsuccessful appeal to the United States District Court for the Eastern District of Virginia, the case is now before us for review. We affirm.
Epperson was arrested on November 29, 1970, at Washington National Airport while boarding a flight to New York City. After giving his ticket to an agent at the gate, he proceeded toward the airplane. Passengers on this flight were exposed to a metal detecting device called a magnetometer. As Epperson passed by the instrument it disclosed an unusually high reading. The United States Marshal using the magnetometer then asked Epperson if he were carrying a large amount of metal. Epperson produced several metal objects, but the device still gave a positive reading to his person. Thereupon the marshal searched the jacket Epperson was carrying and found a loaded .22 caliber pistol.
Epperson claims that the pistol and ammunition should not have been introduced into evidence because they were the products of an illegal search. He argues that (1) the use of the magnetometer was a “search”, and (2) since there was no warrant and the circumstances do not fall within any of the recognized exceptions to the warrant requirement, the search was in violation of the Fourth Amendment.
We agree that the use of the magnetometer in these circumstances was a “search” within the meaning of the Fourth Amendment. By this device a government officer, without permission, discerned metal on Epperson’s person. That he did so electronically rather than by patting down his outer clothing or “frisking” may make the search more tolerable and less offensive — but it is still a search. Indeed, that is the very purpose and function of a magnetometer: to search for metal and disclose its presence in areas where there is a normal expectation of privacy.
We also agree that the limited search by magnetometer does not fall within any of the recognized exceptions to the warrant requirement of the Fourth Amendment except that suggested by Terry v. Ohio,
In
Terry
an experienced police officer observed two men in broad daylight passing and peering into a store window 12 times. They walked away together and met a third man with whom they had talked briefly before. The confrontation then occurred, resulting in the officer’s frisking their outer clothing and in the seizure of two weapons. There was no warrant, no probable cause for
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arrest, no probable cause for search for evidence of crime, but suspicious circumstances sufficient to “ ‘warrant a man of reasonable caution in the belief’ that the action taken was appropriate.”
Terry, supra
at 22,
The limited scope and purpose of the search plus the element of danger and the necessity for swift action excused getting a warrant in
Terry.
It is impossible to catalog the myriad circumstances that enter into the selection of a given aircraft flight for magnetometer surveillance. Indeed, the entire anti-hijacking program is necessarily shrouded in secrecy. United States v. Lopez,
The Constitution does not forbid searches and seizures: it forbids only those that are unreasonable. Elkins v. United States,
We think the search for the sole purpose of discovering weapons and preventing air piracy, and not for the purpose of discovering weapons and pre-criminal events, fully justified the minimal invasion of personal privacy by magnetometer. The use of the device, unlike frisking, cannot possibly be “an annoying, frightening, and perhaps humiliating experience,”
Terry, supra
at 25,
When the high metal indication of the magnetometer was not satisfactorily explained by Epperson, the subsequent physical “frisk” of his jacket was entirely justifiable and reasonable under Terry. At this stage of the encounter the reasonable fear of the marshal for the safety of airline passengers increased and he was entitled, for their protection, to conduct a carefully limited search of the clothing of Epperson in an attempt to discover weapons which might be used for air piracy. Since the use of the magnetometer was justified at its inception, and since the subsequent physical frisk was justified by the information developed by the magnetometer, and since the search was limited in scope to the circumstances which justified the interference in the first place, we hold the search and seizure not unreasonable under the Fourth Amendment.
Affirmed.
Notes
. “[D]eath if the verdict of the jury shall so recommend . . . .” 49 U.S.C.A. § 1472 (i) d) (A).
