His book is really good, specially studies on different chemicals in marijuana, THC, CBD, terpines, etc. Great chapter on drug testing and how to gauge impairment, how easy it is to get false negatives on a test, etc.
vidmsc 2 years ago
His book is really good, specially studies on different chemicals in marijuana, THC, CBD, terpines, etc. Great chapter on drug testing and how to gauge impairment, how easy it is to get false negatives on a test, etc.
vidmsc 2 years ago