; or (ii) in furtherance of the exceptions described in paragraph (2)(B)(i). (4) Prohibition on results of metadata query as a basis for access to communications and other protected information If a query of information acquired under this section is conducted in an effort to find communications metadata of 1 or more United States persons or persons reasonably believed to be located in the United States at the time of the query or communication and the query returns such metadata, the results of the query shall not be used as a basis for reviewing communications or information a query for which is otherwise prohibited under this section. (5) Federated datasets The prohibitions and requirements in this section shall apply to queries of federated and mixed datasets that include information acquired under this section, unless a mechanism exists to limit the query to information not acquired under this section. . 3. Limitation on use of information obtained under section 702 of the Foreign Intelligence Surveillance Act of 1978 relating to United States persons and persons located in the United States in criminal, civil, and administrative actions Paragraph (2) of section 706(a) of the Foreign Intelligence Surveillance Act of 1978 ( 50 U.S.C. 1881e(a) ) is amended to read as follows: (2) Limitation on use in criminal, civil, and administrative proceedings and investigations No information acquired pursuant to section 702(f) of or about a United States person or person reasonably believed to be located in the United States at the time of acquisition or communication may be introduced as evidence against such person in any criminal, civil, or administrative proceeding or used as part of any criminal, civil, or administrative investigation, except— (A) with the prior approval of the Attorney General