42 U.S. Code § 1989 - United States magistrate judges; appointment of persons to execute warrants

The district courts of the United States and the district courts of the Territories, from time to time, shall increase the number of United States magistrate judges, so as to afford a speedy and convenient means for the arrest and examination of persons charged with the crimes referred to in section 1987 of this title; and such magistrate judges are authorized and required to exercise all the powers and duties conferred on them herein with regard to such offenses in like manner as they are authorized by law to exercise with regard to other offenses against the laws of the United States. Said magistrate judges are empowered, within their respective counties, to appoint, in writing, under their hands, one or more suitable persons, from time to time, who shall execute all such warrants or other process as the magistrate judges may issue in the lawful performance of their duties, and the persons so appointed shall have authority to summon and call to their aid the bystanders or posse comitatus of the proper county, or such portion of the land or naval forces of the United States, or of the militia, as may be necessary to the performance of the duty with which they are charged; and such warrants shall run and be executed anywhere in the State or Territory within which they are issued.


(R.S. §§ 1983, 1984; Mar. 3, 1911, ch. 231, § 291,36 Stat. 1167; Pub. L. 90–578, title IV, § 402(b)(2),Oct. 17, 1968, 82 Stat. 1118; Pub. L. 101–650, title III, § 321,Dec. 1, 1990, 104 Stat. 5117.)

R.S. §§ 1983 and 1984 derived from acts Apr. 9, 1866, ch. 31, §§ 4, 5,14 Stat. 28; May 31, 1870, ch. 114, §§ 9, 10,16 Stat. 142.
Section was formerly classified to section 50 of Title 8, Aliens and Nationality.
Change of Name

“United States magistrate judges” and “magistrate judges” substituted in text for “magistrates” wherever appearing pursuant to section 321 ofPub. L. 101–650, set out as a note under section 631 of Title 28, Judiciary and Judicial Procedure. Previously, “magistrates” substituted for “commissioners” pursuant to Pub. L. 90–578. See chapter 43 (§ 631 et seq.) of Title 28.
“District courts” substituted for “circuit courts” on authority of act Mar. 3, 1911, ch. 231, § 291,36 Stat. 1167.

The table below lists the classification updates, since Jan. 3, 2012, for this section. Updates to a broader range of sections may be found at the update page for containing chapter, title, etc.

The most recent Classification Table update that we have noticed was Tuesday, August 13, 2013

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42 USCDescription of ChangeSession YearPublic LawStatutes at Large


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