Title 18Crimes and Criminal ProcedureRelease 119-73

§1503 Influencing or injuring officer or juror generally

Title 18 › Part PART I— - CRIMES › Chapter CHAPTER 73— - OBSTRUCTION OF JUSTICE › § 1503

Last updated Apr 6, 2026|Official source

Summary

It is a crime to try to influence, scare, or stop jurors, judges, magistrates, or court officers from doing their jobs. That includes using threats, force, or threatening letters or messages, or hurting their body or property because they served as a juror or performed official duties. It also covers trying to interfere with the fair running of justice. If someone kills a protected person, they get the federal murder or manslaughter penalties found in sections 1111 and 1112. If they try to kill someone, or attack a trial juror in a case charging a class A or B felony, the punishment can be up to 20 years in prison, a fine, or both. In other cases, it can be up to 10 years, a fine, or both. If the act happens during a criminal trial and involves threats or force, the prison term can be the higher of these limits or the maximum for the crime being tried.

Full Legal Text

Title 18, §1503

Crimes and Criminal Procedure — Source: USLM XML via OLRC

(a)Whoever corruptly, or by threats or force, or by any threatening letter or communication, endeavors to influence, intimidate, or impede any grand or petit juror, or officer in or of any court of the United States, or officer who may be serving at any examination or other proceeding before any United States magistrate judge or other committing magistrate, in the discharge of his duty, or injures any such grand or petit juror in his person or property on account of any verdict or indictment assented to by him, or on account of his being or having been such juror, or injures any such officer, magistrate judge, or other committing magistrate in his person or property on account of the performance of his official duties, or corruptly or by threats or force, or by any threatening letter or communication, influences, obstructs, or impedes, or endeavors to influence, obstruct, or impede, the due administration of justice, shall be punished as provided in subsection (b). If the offense under this section occurs in connection with a trial of a criminal case, and the act in violation of this section involves the threat of physical force or physical force, the maximum term of imprisonment which may be imposed for the offense shall be the higher of that otherwise provided by law or the maximum term that could have been imposed for any offense charged in such case.
(b)The punishment for an offense under this section is—
(1)in the case of a killing, the punishment provided in section 1111 and 1112;
(2)in the case of an attempted killing, or a case in which the offense was committed against a petit juror and in which a class A or B felony was charged, imprisonment for not more than 20 years, a fine under this title, or both; and
(3)in any other case, imprisonment for not more than 10 years, a fine under this title, or both.

Legislative History

Notes & Related Subsidiaries

Historical and Revision Notes

Based on title 18, U.S.C., 1940 ed., § 241 (Mar. 4, 1909, ch. 321, § 135, 35 Stat. 1113; June 8, 1945, ch. 178, § 1, 59 Stat. 234). The phrase “other committing magistrate” was substituted for “officer acting as such commissioner” in order to clarify meaning. Minor changes were made in phraseology.

Editorial Notes

Amendments

1996—Subsec. (a). Pub. L. 104–214 inserted at end “If the offense under this section occurs in connection with a trial of a criminal case, and the act in violation of this section involves the threat of physical force or physical force, the maximum term of imprisonment which may be imposed for the offense shall be the higher of that otherwise provided by law or the maximum term that could have been imposed for any offense charged in such case.” 1994—Pub. L. 103–322, § 330016(1)(K), which directed the substitution of “fined under this title” for “fined not more than $5,000”, could not be executed because the words “fined not more than $5,000” did not appear in text subsequent to amendment by Pub. L. 103–322, § 60016. See below. Pub. L. 103–322, § 60016, designated existing provisions as subsec. (a), substituted “magistrate judge” for “commissioner” in two places and “punished as provided in subsection (b)” for “fined not more than $5,000 or imprisoned not more than five years, or both”, and added subsec. (b). 1982—Pub. L. 97–291, § 4(c)(1), substituted “or juror” for “, juror or witness” after “officer” in section catchline. Pub. L. 97–291, § 4(c)(2), (3), substituted in text “grand” for “witness, in any court of the United States or before any United States commissioner or other committing magistrate, or any grand” after “or impede any”, and struck out “injures any party or witness in his person or property on account of his attending or having attended such court or examination before such officer, commissioner, or other committing magistrate, or on account of his testifying or having testified to any matter pending therein, or” after “discharge of his duty, or”.

Statutory Notes and Related Subsidiaries

Effective Date

of 1982 AmendmentAmendment by Pub. L. 97–291 effective Oct. 12, 1982, see section 9(a) of Pub. L. 97–291, set out as an

Effective Date

note under section 1512 of this title.

Reference

Citations & Metadata

Citation

18 U.S.C. § 1503

Title 18Crimes and Criminal Procedure

Last Updated

Apr 6, 2026

Release point: 119-73