S.D. Codified Laws § 26-17-2

When a missing child report is made to a law enforcement agency in this state that has jurisdiction in the matter, the law enforcement agency shall gather readily available information about the missing child and integrate such information into the national crime information center computer within twelve hours following the making of the report. The law enforcement agency shall make reasonable efforts to acquire additional information about the missing child following the transmittal of the initially available information and promptly integrate any additional information acquired into such computer systems.