§ 5537. Fees for jury and witness service
(a)
An employee as defined by section
2105 of this title (except an individual whose pay is disbursed by the Secretary of the Senate, the Chief Administrative Officer of the House of Representatives, or the Chief of the Capitol Police) or an individual employed by the government of the District of Columbia may not receive fees for service—
(b)
An official of a court of the United States or the District of Columbia may not receive witness fees for attendance before a court, commissioner, or magistrate judge where he is officiating.
(c)
For the purpose of this section, “court of the United States” has the meaning given it by section
451 of title
28 and includes the District Court of Guam and the District Court of the Virgin Islands.