§ 2000h–1.
No person should be put twice in jeopardy under the laws of the United States for the same act or omission. For this reason, an acquittal or conviction in a prosecution for a specific crime under the laws of the United States shall bar a proceeding for criminal contempt, which is based upon the same act or omission and which arises under the provisions of this Act; and an acquittal or conviction in a proceeding for criminal contempt, which arises under the provisions of this Act, shall bar a prosecution for a specific crime under the laws of the United States based upon the same act or omission.
([Pub. L. 88–352, title XI, § 1102], July 2, 1964, [78 Stat. 268].)