South Dakota Codified Laws
Chapter 31 - Traffic Regulation
Section 9-31-4 - Assistance in enforcement of drunk-driving laws.

9-31-4. Assistance in enforcement of drunk-driving laws.
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.