Lieberman’s Reagent is used for the general screening to presumptively identify PMA, Ketamine, Barbiturates and Methadone. This test is used after a Brown result in Test A, or a clear result in Test A followed by no change in Test G.
For the presumptive identification of Methamphetamine and MDMA (Ecstacy). Test A should always be used prior to Test U, as color results for Methamphetamine, Amphetamine and MDMA (Ecstacy) can be very similar.
For the presumptive identification of PCP (Phencyclidine). Test J should be used after positive results from Tests A, G, I and W. A positive result is generated by the absence of color change in the first ampoule, followed by a blue or pink with blue.
Modified Scott Reagent is used for the presumptive identification of Cocaine, Crack or Free Base. A positive result is generated by blue or pink with blue speckles after breaking the first ampoule, a pink result after.
Duquenois-Levine Reagent - Standalone test for the presumptive identification of Marijuana, Hashish and “Hash Oil”. A positive result is generated by no color change after breaking the first ampoule, a dark blue or violet after breaking.