S.D. Codified Laws § 26-8C-9
Current with legislation signed by the governor on or before 3/6/2024
An alleged or adjudicated delinquent child may not be held in temporary custody for more than ninety days beginning with the date the child is first taken into custody unless at the ninetieth day the child is in the process of receiving treatment or care which has a specified duration. In that case, the temporary custody may be extended to the end of the treatment or care.
SDCL 26-8C-9