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 I doubt any smoker need the SQDC for their weed. When it comes to alcohol i don't drink much of it, i prefer good old beer so im not affected so far, but from my understanding you can still buy it online... Basically these new restrictions mean nothing concretely in term of public health and security but are just there to be annoyance, punitive, for peoples who stand their ground and put their body and health choice first.
Personally im prepared that this nonsense may extend to other places and whatever it take, i will stand my ground and not comply.