Reports of an analysis of urine samples by a chemist or chemical laboratory selected by the commission constitute prima facie evidence of the presence or absence of the substances listed in § 20:04:27:13 or the presence of any other substance not authorized by § 20:04:27:13. In determining compliance with subdivision 20:04:27:14(3) for any horse using an authorized substance, the commission may rely upon an opinion by the chemist or a chemical laboratory selected by it concerning the time of the last administration of an authorized substance to that horse. The opinion shall be based upon an analysis of the level of the authorized substance or its metabolites in urine samples from that horse. This chemist's report shall create a rebuttable presumption of the time of the last administration of any authorized substance to that horse or the presence of any unauthorized substance.

Cross-References:

Use of certain drugs authorized, § 20:04:27:13.

Restrictions on use of authorized drugs, § 20:04:26:14(3).

Source: 4 SDR 85, effective June 15, 1978; 5 SDR 87, effective April 15, 1979; 6 SDR 77, effective February 3, 1980; transferred from § 20:04:05:38, 9 SDR 122, effective March 31, 1983; 12 SDR 151, 12 SDR 155, effective July 1, 1986; 13 SDR 95, effective January 11, 1987; 16 SDR 129, effective February 4, 1990; 38 SDR 101, effective December 5, 2011.

General Authority: SDCL 42-7-56(4).

Law Implemented: SDCL 42-7-56(4).