S.D. Codified Laws § 35-9-1.2 (2026)
Any person charged with a violation of § 35-9-1, 35-9-1.1, or 35-12B-7, may offer evidence, as a defense, that the person made a reasonable attempt to investigate the age of the person by examining an age-bearing identification document that would have appeared valid to a reasonable and prudent person.
Source: SL 1991, ch 299 ; SL 2000, ch 182 , § 1; SL 2010, ch 180 , § 60; SL 2015, ch 196 , § 8, eff. Jan. 1, 2016.