Yes this should be the law. I am a recovering opioid addict with 3 years and 1 week clean. I lived in the world of oxycodone, heroin, fentanyl, etc. for years. Fentanyl traditionally by itself is not used by addicts, it is much more widely possessed by dealers and traffickers. Also, you need to realize just how much even 2/5/20 grams of fentanyl really is. If someone is carrying (without a prescription) 5 or more grams of fentanyl, then I'd bet my left hand that they either have a significant amount of heroin to mix it with OR they're planning on buying heroin to cut with the fentanyl. I lost a very close friend to fentanyl cut heroin and there is no reason for ANYONE to possess it.