From the Document: "The Tribal Law and Order Act (TLOA) of 2010 requires the Bureau of Justice Statistics (BJS) to (1) establish and implement a tribal crime data collection system, (2) consult with Indian tribes to establish and implement this data-collection system, and (3) report annually to Congress on the data collected and analyzed in accordance with the act. Te act specifies data collection and analysis of crimes committed on federally recognized reservations, in tribal communities, and on identified trust lands, which in combination are commonly referred to as Indian country. There are approximately 326 federally recognized tribal lands in the continental United States, with an estimated population of 4.6 million persons, of which 23% are American Indian or Alaska Native (AIAN)."
NCJ 254789; National Criminal Justice 254789
U.S. Bureau of Justice Statistics: https://www.bjs.gov/