In Re Grand Jury Proceedings Gary Katz, Witness. Benjamin Jamil, Intervenor-Appellant v. United States

MULLIGAN, Circuit Judge:

Gary Katz, an attorney, was served with a subpoena on March 18,1980 directing him to appear before a grand jury empanelled in the Eastern District of New York which is investigating the unlicensed exports of devices on the Munitions Control List in violation of the Arms Export Control Act of 1954, 22 U.S.C. § 2778. The subpoena required Katz to testify and to bring with him “all documents relating to any dealings or business with CCS, Communications Control Systems, Benjamin Jamil or any company owned, operated or controlled by Benjamin Jamil.” Katz, who was thought by…