Mistral Group’s Detect 4 Drugs (D4D) aerosol reagent can detect four drug types from a single trace collection. When surfaces are wiped using special test paper #630 and sprayed with D4D, traces of hashish/marijuana, heroin, amphetamines, and methamphetamines are revealed with specific-colored stains. Mistral products are sold individually or in a variety of kit configurations, which include sprays (100, 50, or 10-test sizes), collection papers, and a carry case.