SDCL § 1-1-18: Indian country--Assumption of jurisdiction.

The State of South Dakota, in accordance with the provisions of 67 Statutes at Large, page 589 (Public Law 280), hereby assumes and accepts jurisdiction of all criminal offenses and civil causes of action arising in the Indian country located within this state, as Indian country is defined by 18 U.S.C., § 1151, and obligates and binds this state to the assumption thereof, the provisions of chapter 106 of the Session Laws of the State of South Dakota for 1901, as amended, or any other law of this state to the contrary, notwithstanding.