Columbia subject headings:
Public officers--Legal status, laws, etc.--United States.
Witnesses--United States--Fees.
Harvard subject headings:
Public officers--Legal status, laws, etc.--United States.
United States--Officials and employees--Legal status, laws, etc.
Witnesses--Fees--United States.
Princeton subject headings:
Public officers--Legal status, laws, etc.--United States.
Witnesses--United States--Fees.