Many hours have been put into developing a reliable, NIJ compliant presumptive field test for synthetic cannabinoids. This solution identifies indole formulas including #JWH-018, JWH-073, JWH-200, AB-001, AM-2201, RCS-4, RCS-8, XLR-11 and UR-144. This test does not color react with non-indole formulas including HU-210, CP47,496, or the new substance AKB-48, but fortunately these are less common and most street substances include multiple synthetic cannabinoids.