18 U.S.C. § 3506 : US Code - Section 3506: Service of papers filed in opposition to official request by United States to foreign government for criminal evidence

Search 18 U.S.C. § 3506 : US Code - Section 3506: Service of papers filed in opposition to official request by United States to foreign government for criminal evidence

(a) Except as provided in subsection (b) of this section, any
national or resident of the United States who submits, or causes to
be submitted, a pleading or other document to a court or other
authority in a foreign country in opposition to an official request
for evidence of an offense shall serve such pleading or other
document on the Attorney General at the time such pleading or other
document is submitted.
(b) Any person who is a party to a criminal proceeding in a court
of the United States who submits, or causes to be submitted, a
pleading or other document to a court or other authority in a
foreign country in opposition to an official request for evidence
of an offense that is a subject of such proceeding shall serve such
pleading or other document on the appropriate attorney for the
Government, pursuant to the Federal Rules of Criminal Procedure, at
the time such pleading or other document is submitted.
(c) As used in this section, the term "official request" means a
letter rogatory, a request under a treaty or convention, or any
other request for evidence made by a court of the United States or
an authority of the United States having criminal law enforcement
responsibility, to a court or other authority of a foreign country.