25 U.S.C. § 2809 — Reports to tribes

(a) Coordination and data collection
(1) Investigative coordination Subject to subsection (c), if a law enforcement officer or employee of any Federal department or agency terminates an investigation of an alleged violation of Federal criminal law in Indian country^* without referral for prosecution, the officer or employee must coordinate with the appropriate tribal law enforcement officials regarding the status of the investigation and the use of evidence relevant to the case in a tribal court with authority over the crime alleged.
(2) Investigation data The Federal Bureau^* of Investigation must compile, on an annual basis and by Field Division, information regarding decisions not to refer to an appropriate prosecuting authority cases in which investigations had been opened into an alleged crime in Indian country, including —
(A) the types of crimes alleged;
(B) the statuses of the accused as Indians or non-Indians;
(C) the statuses of the victims as Indians or non-Indians; and
(D) the reasons for deciding against referring the investigation for prosecution.
(3) Prosecutorial coordination Subject to subsection (c), if a United States Attorney declines to prosecute, or acts to end prosecution of, an alleged violation of Federal criminal law in Indian country, the United States Attorney must coordinate with the appropriate tribal justice officials regarding the status of the investigation and the use of evidence relevant to the case in a tribal court with authority over the crime alleged.
(4) Prosecution data The United States Attorney must submit to the Native American Issues Coordinator to compile, on an annual basis and by Federal judicial district, information regarding all declinations of alleged violations of Federal criminal law that occurred in Indian country that were referred for prosecution by law enforcement agencies, including —
(A) the types of crimes alleged;
(B) the statuses of the accused as Indians or non-Indians;
(C) the statuses of the victims as Indians or non-Indians; and
(D) the reasons for deciding to decline or end the prosecutions.

(b) Annual reports The Attorney General must submit to Congress annual reports containing, about the applicable calendar year, the information compiled under paragraphs
(2) and
(4) of subsection (a) —
(1) organized —
(A) in the aggregate; and
(B)
(i) for the Federal Bureau of Investigation, by Field Division; and
(ii) for United States Attorneys, by Federal judicial district; and
(2) including any relevant explanatory statements.

(c) Effect of section (1) In general Nothing in this section requires any Federal agency or official to transfer or disclose any confidential, privileged, or statutorily protected communication, information, or source to an official of any Indian tribe^*.
(2) Federal Rules of Criminal Procedure Nothing in this section affects or limits the requirements of Rule 6 of the Federal Rules of Criminal Procedure.
(3) Regulations The Attorney General must establish, by regulation, standards for the protection of the confidential or privileged communications, information, and sources described in this section.