S.D. Codified Laws § 27A-10-2
After examination of a petition filed under § 27A-10-1, the chair of the county board of mental illness may order the apprehension and transportation by a law enforcement officer or other designee of any person whom the chair has probable cause to believe meets the criteria in § 27A-10-1 to an appropriate regional facility other than the Human Services Center. No jail may be used for prehearing custody until the availability of other appropriate regional facilities has been explored and exhausted. No person may be held in a jail for longer than twenty-four hours on a mental illness hold alone.
If the alleged mentally ill person is a nonresident of the state, the Human Services Center may be used as an appropriate regional facility. If a nonresident of the state is transported to the Human Services Center, the State of South Dakota shall pay any expenses and costs provided for in this title as the responsibility of the county of residence, subject to any right of reimbursement. If the Human Services Center is not utilized for a nonresident of the state, the referring county shall pay any expenses and costs provided for in this title as the responsibility of the county of residence, subject to any right of reimbursement.
If the facility to which the person is transported is in a county served by another board of mental illness, a copy of the petition shall be forthwith filed with the chair of such board. The referring county shall pay any expenses incurred in apprehension and transportation of the person, subject to reimbursement by the county ultimately proven to be the county of residence. No lien may be placed against the person for the costs incurred in the apprehension or transportation of the person.
SDCL 27A-10-2