Tap any paragraph to write a margin note. Your notes collect in the Desk below the text and file under cases with @. The side-by-side margin rail opens on a larger screen.

Code · U.S. Code · Title 18 - CRIMES AND CRIMINAL PROCEDURE · CHAPTER 206— PEN REGISTERS AND TRAP AND TRACE DEVICES · § 3125

§ 3125. Emergency pen register and trap and trace device installation

650 words·~3 min read·/usc/title-18/section-3125

A research copy — for the controlling text, always check the official state or federal source. Not legal advice.

(a)Notwithstanding any other provision of this chapter, any investigative or law enforcement officer, specially designated by the Attorney General, the Deputy Attorney General, the Associate Attorney General, any Assistant Attorney General, any acting Assistant Attorney General, or any Deputy Assistant Attorney General, or by the principal prosecuting attorney of any State or subdivision thereof acting pursuant to a statute of that State, who reasonably determines that—
(1)an emergency situation exists that involves—
(A)immediate danger of death or serious bodily injury to any person;
(B)conspiratorial activities characteristic of organized crime;
(C)an immediate threat to a national security interest; or
(D)an ongoing attack on a protected computer (as defined in section 1030) that constitutes a crime punishable by a term of imprisonment greater than one year;
that requires the installation and use of a pen register or a trap and trace device before an order authorizing such installation and use can, with due diligence, be obtained, and
(2)there are grounds upon which an order could be entered under this chapter to authorize such installation and use;
may have installed and use a pen register or trap and trace device if, within forty-eight hours after the installation has occurred, or begins to occur, an order approving the installation or use is issued in accordance with section 3123 of this title.
(b)In the absence of an authorizing order, such use shall immediately terminate when the information sought is obtained, when the application for the order is denied or when forty-eight hours have lapsed since the installation of the pen register or trap and trace device, whichever is earlier.
(c)The knowing installation or use by any investigative or law enforcement officer of a pen register or trap and trace device pursuant to subsection
(a)without application for the authorizing order within forty-eight hours of the installation shall constitute a violation of this chapter.
(d)A provider of a wire or electronic service, landlord, custodian, or other person who furnished facilities or technical assistance pursuant to this section shall be reasonably compensated for such reasonable expenses incurred in providing such facilities and assistance.
(Added Pub. L. 100–690, title VII, § 7092(a)(2), Nov. 18, 1988, 102 Stat. 4410; amended Pub. L. 103–322, title XXXIII, § 330008(3), Sept. 13, 1994, 108 Stat. 2142; Pub. L. 104–294, title VI, § 601(f)(5), Oct. 11, 1996, 110 Stat. 3499; Pub. L. 107–296, title XXII, § 2207(i), formerly title II, § 225(i), Nov. 25, 2002, 116 Stat. 2158, renumbered § 2207(i), Pub. L. 115–278, § 2(g)(2)(I), Nov. 16, 2018, 132 Stat. 4178.)
Connections11 cite this · traces to 5
15 references not yet in our index
  • Pub. L. 100–690, title VII, § 7092(a)(2)
  • 102 Stat. 4410
  • Pub. L. 103–322, title XXXIII, § 330008(3)
  • 108 Stat. 2142
  • Pub. L. 104–294, title VI, § 601(f)(5)
  • 110 Stat. 3499
  • Pub. L. 107–296, title XXII, § 2207(i)
  • 116 Stat. 2158
  • 132 Stat. 4178
  • Pub. L. 107–296
  • Pub. L. 104–294
  • Pub. L. 103–322, § 330008(3)(A)
  • Pub. L. 103–322, § 330008(3)(C)
  • section 4 of Pub. L. 107–296
  • section 302 of Pub. L. 99–508
Citation graph
cites case law
§ 3125
Emergency pen register and trap and trace device installation
U.S.C.×9
IRM×1
Stat.×1
Pub. L.Pub. L. 100–690, title VII, § 7092(a)(2)
Stat.102 Stat. 4410
Pub. L.Pub. L. 103–322, title XXXIII, § 330008(3)
Stat.108 Stat. 2142
Pub. L.Pub. L. 104–294, title VI, § 601(f)(5)
Cites 20 · showing 10Cited by 11 across 3 sources
★   the supreme law of the land   ★
Don't Tread on Me
E Pluribus Unum — out of many, one

"If you don't know your rights, you don't have any."

Marginalia · a citizen's law index
A research desk, not legal advice. Always read the cited source before relying on a summary.
Questions or an issue? support@self-law.org
disclaimerMarginalia is a research index, not a law firm. Nothing on this site is legal, tax, or financial advice and no attorney–client relationship is formed by using it. Statutes, regulations, and case law change; summaries, search results, AI output, and member posts may be incomplete, out of date, or wrong. Any interpretation drawn from material on this site should be validated by a licensed attorney in your jurisdiction before you act on it.