Section 15-6-39(a) - Trial by juryWhen trial by jury has been demanded as provided in § 15-6-38, the action shall be designated upon the docket as a jury action. The trial of all issues so demanded shall be by jury, unless:
(1) The parties or their attorneys of record, by written stipulation filed with the court or by an oral stipulation made in open court and entered in the record, consent to trial by the court sitting without a jury, or a party waives the same by failing to appear at the trial or by proceeding to trial by the court without objecting thereto; or(2) The court upon motion or of its own initiative finds that a right of trial by jury of some or all of those issues does not exist under the Constitution or statutes of this state.SDC 1939 & Supp 1960, §§ 33.1304, 33.1402; SD RCP, Rule 39 (a), as adopted by Sup. Ct. Order March 29, 1966, effective July 1, 1966.