S.D. Codified Laws § 19-19-601 (2026)
Every person is competent to be a witness unless otherwise provided in this chapter.
Source: SL 1979, ch 358 (Supreme Court Rule 78-2, Rule 601); SDCL § 19-14-1 ; SL 2016, ch 239 (Supreme Court Rule 15-35 ), eff. Jan. 1, 2016.