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Presumptive test designed to identify the presence of Valium, Diazepam, Rohypnol (Roofies) and Ketamine. After breakage and agitation of the two ampoules, a pale Lavender color will develop in the presence of Valium, Diazepam and Rohypnol. A darker Lavender color will develop after the 2nd ampoule in the presence of Ketamine.
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