S.D. Codified Laws § 34-48-11
Any law enforcement officer responding to a request under the provisions of this chapter shall be treated as a law enforcement officer of the requesting agency for liability purposes while in its jurisdiction, and the requesting agency shall obtain and maintain liability coverage for those law enforcement officers responding to requests. While a law enforcement officer is assigned to temporary duty within the jurisdiction of another public agency, any liability that accrues on account of the negligent or otherwise tortious act of the law enforcement officer while performing the duty is the responsibility of the requesting public agency and not the deploying public agency.
This section does not apply to any law enforcement officer or other employee of a state agency of the State of South Dakota, an agency of the United States, or a tribal government.
SDCL 34-48-11