S.D. Codified Laws § 18-1-11.3

A notarial officer must retain an electronic audio-visual copy of each notarial act involving the use of a tamper-evident notarization system for ten years from the date of the performance. Upon suspension or revocation of a notarial officer's commission, or upon death or incapacity, the notarial officer or the guardian, conservator, or personal representative of the incapacitated or deceased notarial officer must retain an electronic audio-visual copy of each notarial act for ten years. In lieu of retaining copies as required by this section, the copies may be held by a repository designated by or on behalf of the notarial officer.