S.D. Codified Laws § 29A-3-311 (2026)
The clerk shall decline an application for informal appointment if the application indicates the existence of a possible unrevoked testamentary instrument which may relate to property subject to the laws of this state, and which is not filed for probate in this court.
Source: SL 1994, ch 232 , § 3-311; SL 1995, ch 167 , § 110.