Coca-Test is a field test reagent for the detection and identification of cocaine and crack. Coca-Test utilizes a modified Cobalt Thiocyanate (Scott) reagent that has been designed to reduce the number of false positives while at the same time, removing hazardous chemicals such as hydrochloric acid. Using collection paper # 0530, simply wipe the suspected surface or touch the seized substance and spray. A turquoise color reaction on the collection paper indicates a positive reaction. The reagent has been packaged into an aerosol delivery system that provides sensitivity to residue levels less than ten micrograms.