In the 1980s and 1990s, Canadian drug policy was heavily influenced by American's interests in protecting their border. Canada could not legalize marijuana because the United States would tighten up the border as a result which would negatively impact our economy since cross border trade would slow down. Now that Colorado and Washington have legalized recreational pot use, the volume of weed smuggled from Canada into the USA has dropped significantly. Would would anyone risk moving a drug across a secure international border when they could just purchase it from a store in Denver or Seattle and move it across state lines for a profit? Non-criminal marijuana use is frustrating to some Americans who are banned from entering Canada without special permission due to weed possession. Someone smoking a join in Washington state 5 years ago could be charged for possessing a controlled substance and would consequently be criminally inadmissible to Canada without a TRP. Now, someone smoking a join in the same state would be supporting the state's tax base and could do so would worrying about the Police.