S.D. Codified Laws § 26-7A-9 (2026)
The state's attorney shall represent the state in all proceedings brought under this chapter and chapter 26-8A, 26-8B, or 26-8C. The state's attorney shall also represent the Department of Social Services in any proceedings brought under this chapter or chapter 26-8A unless the Department of Social Services has selected a separate attorney and has so informed the concerned state's attorney and the court.
Source: SDC 1939, § 43.0309 as added by SL 1968, ch 164 , § 7; SL 1991, ch 217 , § 11B; SDCL, § 26-8-22.4.