Let me just say that there are some laws in place, of course, at the federal and provincial levels to stop the spread of invasive species, but if people are not enforcing the laws, if they only have part-time or part-year inspection stations, although it's illegal to bring invasive species to B.C., they are still going to spread unless there are officers out there actually stopping people.
On April 29th, 2019. See this statement in context.