S.D. Codified Laws § 22-46-8
Any person who, in good faith, makes a report of abuse, neglect, or exploitation of any elder or disabled adult, is immune from any civil or criminal liability that might otherwise be incurred or imposed, and has the same immunity with respect to participation in any judicial proceeding resulting from the report. This immunity extends in a like manner to any public official involved in the investigation of abuse, neglect, or exploitation of any elder or disabled adult, or to any person or institution who in good faith cooperates with any public official in an investigation. The provisions of this section do not extend to any person alleged to have committed any act of abuse or neglect of any elder or disabled adult or to any person who has aided and abetted any such act.
SDCL 22-46-8