S.D. Codified Laws § 27B-7-39
The county review board shall review the commitment order and accompanying information at least annually to make a determination of the continued need and supporting justification for commitment. Prior to the annual review, but not less than thirty days prior to the anniversary date of the commitment order, the developmental disability community service provider shall provide a report to the county review board that issued the original commitment order regarding the person's supports, services, and progress. Following ten days notice to the person, the person's attorney, and the Department of Human Services, the county review board shall hold a review hearing. The review hearing shall include participation by the state's attorney, Department of Human Services, the community service provider, and the person's attorney. The rights and procedures applicable during an initial commitment hearing are applicable to review hearings. A petition pursuant to § 27B-7-27 need not be filed. At the conclusion of the review hearing, the county review board may issue an order of continued commitment or immediately discharge the person from involuntary commitment if the conditions in § 27B-7-37 justifying commitment no longer exist.
SDCL 27B-7-39