131. Human trafficking: investigations in Indian country or involving Native Americans and actions needed to better report on victims served : testimony before the Committee on Indian Affairs, U.S. Senate Publication: Washington, D.C. : U.S. Government Accountability Office, September 27, 2017 Subject(s): Human Trafficking -- prevention & controlHuman Trafficking -- statistics & numerical dataIndians, North AmericanData CollectionFederal GovernmentHuman Trafficking -- legislation & jurisprudenceLaw EnforcementHumansUnited StatesUnited States. Department of Health and Human Services.United States. Department of Homeland Security.United States. Department of Justice.United States. Department of the Interior.