S.D. Codified Laws § 58-1-11

Enactment of this title shall not impair or affect any act done, offense committed or right accruing, accrued, or acquired, or liability, penalty, forfeiture, or punishment incurred prior to July 1, 1966, but the same may be enjoyed, asserted, enforced, prosecuted, or inflicted, as fully and to the same extent as if this enactment had not been passed.