SDCL § 35-9-10: Social host prohibited from permitting consumption of alcoholic beverages by person age eighteen, nineteen, or twenty--Misdemeanor.

No person, acting as a social host, may, knowingly, permit any person aged eighteen, nineteen, or twenty to illegally consume any alcoholic beverage, regardless of the source of the alcoholic beverage, on or at the premises of the person acting as social host. Any violation of this section is a Class 2 misdemeanor.