S.D. Codified Laws § 38-35-16
Any transporter is deemed to have given consent to the reasonable search and seizure by law enforcement of any hemp without a warrant to determine the lawful amount of total delta-9 tetrahydrocannabinol concentration. For purposes of this section, product in process that is properly documented is compliant. Any law enforcement officer may require any transporter to stop for the purposes of inspection. During a stop, a law enforcement officer may collect a sample of any hemp for the purpose of testing for any concentration of total delta-9 tetrahydrocannabinol that exceeds three-tenths of one percent on a dry weight basis. Each sample collected by law enforcement may not exceed eight ounces.
It is a Class 2 misdemeanor to transport industrial hemp or product in process, but not industrial hemp product, without appropriate documentation demonstrating compliance with an industrial hemp program of a federal, state, or tribal authority, in addition to any permit or documentation required by § 38-35-17.
SDCL 38-35-16