S.D. Codified Laws § 27A-13-18
If the administrator of the Human Services Center has treated a patient as from a county determined to be the county of the patient's residence by the committing board of mental illness and that county has appeared before the committing board to contest its determination of residence in the manner provided in this title, the state's attorney or county commissioners of the county may notify the attorney general that the patient is a proper charge against another county. Upon receipt of such notice, the attorney general shall notify the clerk of courts of the committing county to file, within thirty days from the date of such notification, a summary of the proofs upon which such findings are based and the record of any initial or reopened commitment hearing on the patient. The attorney general shall determine from review of such records, which county should be charged. The attorney general shall notify the county auditor of the contesting county, the auditor of the county of residence, and the clerk of courts of the committing county and the administrator of the Human Services Center of his determination. Thereafter the administrator shall charge for treatment according to the determination of the attorney general.
SDCL 27A-13-18