The Jury Act (28 U.S.C.§1863(b)(5)(B)(6)) specifies that the following persons are barred from jury service on the ground that they are exempt:

Members in active service of the Armed Forces of the United States;

Members of any governmental fire or police departments; and

Public officers of the United States, state or local governments (elected to public office or directly appointed by one elected to office) who are actively engaged in the performance of official duties.