South Dakota StatutesChapter 22A - Offenses Against The FamilySection 22-22A-1 - Bigamy--Exceptions--Felony.Section 22-22A-2 - Incest--Prohibited sexual contact--Felony.Section 22-22A-3 - Aggravated incest_Related child--Felony.Section 22-22A-3.1 - Aggravated incest--Foster child--Felony.