Most drugs are coming from South America, so Canada isn't really in the way. My guess is amongst other things, there's better conditions for growing them there.
Apparently there is some drug trafficking through Canada [1] mostly coming from Asia, which makes sense, since it'd follow international shipping routes. I'd imagine the volume is much less because it sounds much more expensive, which would make it a much less profitable and contested industry.
Apparently there is some drug trafficking through Canada [1] mostly coming from Asia, which makes sense, since it'd follow international shipping routes. I'd imagine the volume is much less because it sounds much more expensive, which would make it a much less profitable and contested industry.
[1]: https://www.drugwise.org.uk/where-do-drugs-come-from/