28 CFR 16.21: Purpose and scope.
(a) This subpart sets forth procedures to be followed with respect to the production or disclosure of any material contained in the files of the Department, any information relating to material contained in the files of the Department, or any information acquired by any person while such person was an employee of the Department as a part of the performance of that person's official duties or because of that person's official status:
(1) In all federal and state proceedings in which the United States is a party; and
(2) In all federal and state proceedings in which the United States is not a party, including any proceedings in which the Department is representing a government employee solely in that employee's individual capacity, when a subpoena, order, or other demand (hereinafter collectively referred to as a “demand”) of a court or other authority is issued for such material or information.
(b) For purposes of this subpart, the term employee of the Department includes all officers and employees of the United States appointed by, or subject to the supervision, jurisdiction, or control of the Attorney General of the United States, including U.S. Attorneys, U.S. Marshals, U.S. Trustees and members of the staffs of those officials.
(c) Nothing in this subpart is intended to impede the appropriate disclosure, in the absence of a demand, of information by Department law enforcement agencies to federal, state, local and foreign law enforcement, prosecutive, or regulatory agencies.
(d) This subpart is intended only to provide guidance for the internal operations of the Department of Justice, and is not intended to, and does not, and may not be relied upon to create any right or benefit, substantive or procedural, enforceable at law by a party against the United States.