S.D. Codified Laws § 22-11-25

Any person who, lacking the authority to retain a public record in his or her possession, knowingly refuses to deliver it up upon proper request of any person lawfully entitled to receive such record, is guilty of a Class 2 misdemeanor. However, if the knowing refusal to deliver is committed by a public officer or employee having custody of the record, the offense is a Class 1 misdemeanor.