To evaluate the DanceSafe Complete Adulterant Screening Kit for Ecstasy with regard to its accuracy in identifying 3,4-methylenedioxymeth-amphetamine (MDMA) and methylenedioxyamphetamine (MDA) derivatives and its ability to detect certain contaminants. In part 1, 39 street-grade tablets purported to be MDMA were tested with the Marquis, Mecke, and Simon's reagents provided by the DanceSafe...