28 C.F.R. § 77.5
The principles set forth herein, and internal office procedures adopted pursuant hereto, are intended solely for the guidance of attorneys for the government. They are not intended to, do not, and may not be relied upon to create a right or benefit, substantive or procedural, enforceable at law by a party to litigation with the United States, including criminal defendants, targets or subjects of criminal investigations, witnesses in criminal or civil cases (including civil law enforcement proceedings), or plaintiffs or defendants in civil investigations or litigation; or any other person, whether or not a party to litigation with the United States, or their counsel; and shall not be a basis for dismissing criminal or civil charges or proceedings or for excluding relevant evidence in any judicial or administrative proceeding. Nor are any limitations placed on otherwise lawful litigative prerogatives of the Department of Justice as a result of this part.
28 C.F.R. § 77.5