PART 4 - PROHIBITED SUBSTANCES - (C)50 to (C)63

52. Testing positive for a prohibited substance

52.1 For the purposes of this Part, any reference to a Sample testing positive for a Prohibited Substance is to where a Certificate of Analysis for the Sample reports

52.1.1 in the case of a Prohibited Substance for which a threshold level is specified (see Paragraph 2 of Schedule 6), that the concentration of the substance present in the Sample is at, or in excess of, the concentration specified in that Paragraph;
52.1.2 otherwise, that the Prohibited Substance is present in the Sample.

52.2 The result of an Analysis shall be invalidated if the Trainer of the horse satisfies the Authority that

52.2.1 there has been a material departure from the procedures set out in this Part relating to the taking and Analysis of Samples, or
52.2.2 the opinion expressed as to the nature of the substance is wrong.