; and (3) to document, develop, and disseminate resources for use by Federal law enforcement agencies and Tribal, State, and local law enforcement agencies for the coordination of the investigation of missing persons cases of interest to Indian tribes and murder cases of interest to Indian tribes. (d) Authorization of appropriations There is authorized to be appropriated to carry out the program $1,000,000 for each of fiscal years 2020 through 2024. 876. GAO study on Federal law enforcement agency evidence collection, handling, and processing (a) In general The Comptroller General of the United States shall conduct a study— (1) on the evidence collection, handling, and processing procedures and practices of the Office of Justice Services and the Federal Bureau of Investigation in exercising jurisdiction over crimes involving Indians or committed in Indian country; (2) on any barriers to evidence collection, handling, and processing by the agencies referred to in paragraph (1); (3) on the views of law enforcement officials at the agencies referred to in paragraph (1) and their counterparts within the Offices of the United States Attorneys concerning any relationship between— (A) the barriers identified under paragraph (2); and (B) United States Attorneys declination rates due to insufficient evidence