15-6-56(a). Summary judgment for claimant. A party seeking to recover upon a claim, counterclaim, or cross-claim or to obtain a declaratory judgment may, at any time after the expiration of thirty days from the commencement of the action or after service of a motion for summary judgment by the adverse party, move with or without supporting affidavits for a summary judgment in his favor upon all or any part thereof.
Source: SD RCP, Rule 56 (a), as adopted by Sup. Ct. Order March 29, 1966, effective July 1, 1966.