43 U.S.C. § 104 : US Code - Section 104: Disobedience to subpoena

Search 43 U.S.C. § 104 : US Code - Section 104: Disobedience to subpoena

Any person willfully neglecting or refusing obedience to such
subpoena, or neglecting or refusing to appear and testify when
subpoenaed, his fees having been paid if demanded, shall be deemed
guilty of a misdemeanor, for which he shall be punished by
indictment in the district court of the United States or in the
district courts of the Territories exercising the jurisdiction of
district courts of the United States. The punishment for such
offense, upon conviction, shall be a fine of not more than $200, or
imprisonment not to exceed ninety days, or both, at the discretion
of the court: Provided, That if such witness has been prevented
from obeying such subpoena without fault upon his part he shall not
be punished under the provisions of this section.