This regulation is probably more just symbolic virtue signalling to intimidate.
It is exactly this. A form of punition for not complying with their abusing agenda. Personally i don't smoke but had a lot of friends who did during my 20s and the weed was bough from a guy name "Shark" in zipplock bags
Personally im prepared that this nonsense may extend to other places and whatever it take, i will stand my ground and not comply.