Did the federal government's prosecution of an Indian for violation of state law in Indian country violate federal statutes and tribal sovereignty retained by Treaty because neither the Assimilative Crimes Act nor any other federal statute includes an explicit congressional statement defining the Warm Springs Reservation, or any other Indian country, as a federal enclave or otherwise subjecting Indian country to federal criminal jurisdiction for prosecution of a state offense not specifically covered by the federal criminal code?

Did the federal government's prosecution of an Indian for violation of state law in Indian country violate federal statutes and tribal sovereignty retained by Treaty because neither the Assimilative Crimes Act nor any other federal statute includes an explicit congressional statement defining the Warm Springs Reservation, or any other Indian country, as a federal enclave or otherwise subjecting Indian country to federal criminal jurisdiction for prosecution of a state offense not specifically covered by the federal criminal code?