S.D. Codified Laws § 32-24-15

The state's attorney for the county in which a violation of § 32-24-11 or 32-24-12 occurs may commence a civil in rem proceeding against the vehicle used in conjunction with the violation. If it is established by a preponderance of the evidence that the charged vehicle was used in violation of § 32-24-11 or 32-24-12, a civil penalty of one thousand dollars must be assessed against the vehicle, which shall constitute a lien on the vehicle until the penalty is satisfied.