S.D. Codified Laws § 27A-10-14
Within ninety days after the involuntary commitment of a person who is still under the commitment order, the county board of mental illness which serves the county in which the person is receiving treatment shall conduct a review hearing in the county to determine if the person continues to meet the criteria in § 27A-10-9.1. Notice of the review hearing shall be given to the person, and the person's attorney if the person has retained counsel, at least ten days prior to the hearing. If the person has not retained counsel at the time of the notice, the chair of the county board shall immediately appoint counsel to represent the person.
At the time the notice of hearing is given, the person and the person's attorney shall be informed of all evidence that will be considered at the review hearing. Any evidence subsequently discovered shall be immediately transmitted to the person and the person's attorney. The rights and procedures applicable during an initial commitment hearing are applicable to review hearings. A petition pursuant to § 27A-10-1 need not be filed.
The board of mental illness may order the continued involuntary commitment of the person to the same or an alternative placement or program for up to six months if a majority of the board finds by clear and convincing evidence supported by written findings of fact and conclusions of law that the criteria in § 27A-10-9.1 are met. If continued involuntary commitment is ordered, a review in the manner provided in this section shall be conducted within six months after the order. If the county board issues another order of continued involuntary commitment, the next review shall be held within six months after the order. If the second six-month review justifies continued commitment, the county board may order continued involuntary commitment for up to twelve months. Subsequent reviews shall be conducted within each twelve months thereafter that the person remains under commitment.
If the board orders the continued involuntary commitment of the person, the board shall immediately notify the person and the person's attorney of the person's right to appeal pursuant to § 27A-11A-25.
If findings that justify continued commitment are not made, the board shall order that the person be immediately discharged from involuntary commitment. Following discharge, the referring county shall provide the person with transportation to the county where the person was taken into custody if the person so chooses. The county ultimately shown to be the county of residence shall reimburse the referring county for any transportation costs. No lien may be placed against the person for the expense incurred in the transportation of this person.
SDCL 27A-10-14