22 U.S.C. § 703 — Attendance of witnesses

(a) Subpoena; contempt; fees Any district court of the United States, or the United States courts of any Territory or possession, within the jurisdiction of which proceedings are had before any service court of a friendly foreign force, or within the jurisdiction of which any person is found, must have jurisdiction, upon application made by a service court of a friendly foreign force, to issue to such person an order requiring him to appear before the service court or an officer designated to take a deposition for use before such service court and there to produce evidence or give testimony if so ordered. Any failure to obey such order of the court may be punished by that court as a contempt of it: Provided , That the fees of such witnesses and the mileage at the rate allowed to witnesses attending the courts of the United States should be duly paid or tendered in advance to such witnesses, with funds to be supplied by the friendly foreign force. Except as expressly permitted by the court, in its discretion, no such order must run into any other district. (b) Members of armed forces Attendance of witnesses in the armed services of the United States must be obtained by request addressed to the discretion of the commanding officer of the person whose testimony is needed. (c) False testimony; punishment Persons subject to the jurisdiction of the United States, who are not members of a friendly foreign force, who must give false testimony or must commit any act in the presence of a service court of a friendly foreign force which, if committed before a court of the United States, would be in contempt of it, must upon conviction by a court of the United States be fined not more than $2,000 or imprisoned for not more than six months, or both.