Physical search

Definition
A physical search is

"any physical intrusion within the United States into premises or property (including the examination of the interior of property by technical means) that is intended to result in the seizure, reproduction, inspection, or alteration of information, material, or property, under circumstances in which a person has a reasonable expectation of privacy and a warrant would be required for law enforcement purposes, but does not include: (1) electronic surveillance as defined in FISA, or (2) the acquisition by the United States government of foreign intelligence information from international foreign communications, or foreign intelligence activities conducted in accordance with otherwise applicable Federal law involving a foreign electronic communications system, utilizing a means other than electronic surveillance as defined in FISA."