ISL – January 2021 Page 137 of 160 7.2.2  False Negative Finding  Laboratories  failing to identify and/or report a Prohibited Substance and/or its Metabolite (s) or the Marker (s) of a Prohibited Substance or a Prohibited Method  in a blind or double -blind EQAS  sample or during routine Analytical Testing  shall be informed of the False Negative Finding  as soon as possible by WADA .