50 U.S.C. § 1821 : US Code - Section 1821: Definitions

      As used in this subchapter:
        (1) The terms "foreign power", "agent of a foreign power",
      "international terrorism", "sabotage", "foreign intelligence
      information", "Attorney General", "United States person", "United
      States", "person", "weapon of mass destruction", and "State"
      shall have the same meanings as in section 1801 of this title,
      except as specifically provided by this subchapter.
        (2) "Aggrieved person" means a person whose premises, property,
      information, or material is the target of physical search or any
      other person whose premises, property, information, or material
      was subject to physical search.
        (3) "Foreign Intelligence Surveillance Court" means the court
      established by section 1803(a) of this title.
        (4) "Minimization procedures" with respect to physical search,
      means - 
          (A) specific procedures, which shall be adopted by the
        Attorney General, that are reasonably designed in light of the
        purposes and technique of the particular physical search, to
        minimize the acquisition and retention, and prohibit the
        dissemination, of nonpublicly available information concerning
        unconsenting United States persons consistent with the need of
        the United States to obtain, produce, and disseminate foreign
        intelligence information;
          (B) procedures that require that nonpublicly available
        information, which is not foreign intelligence information, as
        defined in section 1801(e)(1) of this title, shall not be
        disseminated in a manner that identifies any United States
        person, without such person's consent, unless such person's
        identity is necessary to understand such foreign intelligence
        information or assess its importance;
          (C) notwithstanding subparagraphs (A) and (B), procedures
        that allow for the retention and dissemination of information
        that is evidence of a crime which has been, is being, or is
        about to be committed and that is to be retained or
        disseminated for law enforcement purposes; and
          (D) notwithstanding subparagraphs (A), (B), and (C), with
        respect to any physical search approved pursuant to section
        1822(a) of this title, procedures that require that no
        information, material, or property of a United States person
        shall be disclosed, disseminated, or used for any purpose or
        retained for longer than 72 hours unless a court order under
        section 1824 of this title is obtained or unless the Attorney
        General determines that the information indicates a threat of
        death or serious bodily harm to any person.

        (5) "Physical search" means any physical intrusion within the
      United States into premises or property (including examination of
      the interior of property by technical means) that is intended to
      result in a 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 (A) "electronic surveillance", as defined in section
      1801(f) of this title, or (B) the acquisition by the United
      States Government of foreign intelligence information from
      international or 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 section 1801(f) of this title.