South Dakota Codified Laws
Chapter 01 - The Supreme Court
Section 16-1-5 - Retired justices and retired or active judges acting in place of disqualified justices.

16-1-5. Retired justices and retired or active judges acting in place of disqualified justices.
Retired justices and judges, with their consent, and active judges may be authorized by the Chief Justice to act in the place of disqualified justices, or in the event of vacancies or other necessities as determined by the Chief Justice. The court shall provide for the reimbursement of their expenses.

Source: SL 1971, ch 153, §§1, 2; SDCL Supp, §§16-8-13, 16-8-14; SL 1974, ch 154, §4; SL 1977, ch 175.