18 U.S.C. § 1503 : US Code - Section 1503: Influencing or injuring officer or juror generally

Search 18 U.S.C. § 1503 : US Code - Section 1503: Influencing or injuring officer or juror generally

(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
sections 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.