see If the weed is contaminated with a artificial cannabinoid exam kit. They don't seem to be produced for this.10 You'll be able to see artificial cannabinoids having a microscope, or an exceptionally strong magnifying glass.eleven When the weed is contaminated, you may perhaps see crystals over the floor. https://bookmarks-hit.com/story22337416/5-simple-statements-about-buy-weed-in-berlin-explained