S.D. Codified Laws § 9-31-4 (2026)
The law enforcement officers of every municipality shall assist state law enforcement officers in the apprehension and prosecution of persons suspected of violating the provisions of chapter 32-23.
Source: SL 1941, ch 192 ; SL 1955, ch 196 ; SDC Supp 1960, § 45.0201 (106); SL 1974, ch 76 , § 2.