25 U.S.C. § 199 : US Code - Section 199: Access to records of Five Civilized Tribes

Search 25 U.S.C. § 199 : US Code - Section 199: Access to records of Five Civilized Tribes

The Secretary of the Interior, or his accredited representative,
shall at all times have access to any books and records of the
Choctaw, Chickasaw, Cherokee, Creek, and Seminole Tribes, whether
in possession of any of the officers of either of said tribes or
any officer or custodian thereof, of the State of Oklahoma.