The Dräger DrugCheck 3000 consists of two components: an absorbent collector for obtaining a saliva sample, and a test cassette for the analysis. Check individuals for up to six substance classes simultaneously with Dräger DrugCheck 3000: cocaine, opiates, amphetamine, methamphetamines/designer drugs (e.g. Ecstasy, MDMA), benzodiazepines (e.g. in prescription medicines) and cannabis (THC). 

https://www.draeger.com/en_seeur/Products/DrugCheck-3000