Based on title 18, U.S.C., 1940 ed., § 243 (Mar. 4, 1909, ch. 321, § 137, 35 Stat. 1113).

Last paragraph was added to remove the possibility that a proper request to appear before a grand jury might be construed as a technical violation of this section.

Minor changes were made in phraseology.

1994—Pub. L. 103–322 substituted “fined under this title” for “fined not more than $1,000” in first par.