S.D. Codified Laws § 41-1-5.7
If any deer or antelope is killed by a motor vehicle on a public highway, any person who desires to possess that animal shall notify a conservation officer, as defined by § 41-15-10, prior to taking possession of the animal. The conservation officer may give a dated and written authorization allowing possession of the animal. The conservation officer may give verbal authorization to take immediate possession of the animal prior to receipt of the written authorization. The written authorization allows the possession and disposal of the animal. The written authorization shall remain with the carcass while in processing or storage. No part of an animal so obtained may be sold, bartered or traded. There is no fee for the issuance of such authorization.
SDCL 41-1-5.7