S.D. Codified Laws § 26-11A-20.1

A risk and needs evaluation shall be conducted for any juvenile under the jurisdiction of the department who reaches the age of nineteen years who has not been discharged pursuant to § 26-11A-20. The evaluation shall focus on the amount of progress made while under the jurisdiction of the department, the ongoing needs of the juvenile, and what risks the juvenile would present to the community or self if discharged at that point. Additionally, the evaluation shall identify recommendations regarding treatment and transition services that will prepare the juvenile for discharge from the jurisdiction of the department. The secretary shall initiate any actions necessary, including referral or civil commitment to service systems for the mentally ill or developmentally disabled, to ensure the treatment needs of the juvenile and the safety interests of the public are best served.