SDCL § 42-7-101: Devices or expedients to increase horse's speed prohibited.

No person may have in his possession an electrical device, mechanical device, or other expedient designed to increase the speed of a horse other than an ordinary whip at anytime on the grounds of a race track licensed by the commission. A violation of this section is a Class 1 misdemeanor. A subsequent violation of this section is a Class 6 felony.