S.D. Codified Laws § 12-21-49
The petition for the writ, if involving a nomination or election as to any office or position, shall denominate the candidate seeking the review as plaintiff, and shall name the candidate or candidates declared elected as defendants. If the petition seeks a review as to a determination of any submitted or referred question, it shall be entitled: "In the matter of petition for writ of certiorari as to determination of election on (specifying the question submitted or referred)." In any case the petition shall concisely set forth the nature of the election involved, the result thereof as pronounced by the official returns, the basis for and proceedings had upon the recount, the respects in which any county recount board, or other authority, is claimed to have exceeded its jurisdiction, and a brief summarized statement of the particulars in which it is claimed any county recount board, or other authority, has misapplied the law in the determination of questions concerning disputed ballots.
SDCL 12-21-49