S.D. Codified Laws § 26-7A-84

The court, on the motion of the state, the child, or any respondent or on the court's own motion, may order the petition to be amended to conform to the evidence. If amendment of the petition results in a substantial departure from the original allegations contained in the petition, the court shall continue the adjudicatory hearing on the motion of any interested party. The court may grant a continuance on the court's own motion if the court finds it to be in the best interests of the child or any other party to the proceeding.