The court's decision potentially upends years' worth of convictions, imprisonment and related fines, leaving prosecutors, lawyers and legislators unsure how to proceed.
Mexico's plan points to the failure of the decades-long international war on drugs.
Using a canine team, the officers located five packages of cocaine attached to the women's bodies.
"Seeing our neighbors making progress should put much more pressure on us to get it right and ditch our outdated federal marijuana policy," Democrat Congressman Earl Blumenauer from Oregon told Newsweek.
"Even people that might have smoked it 20, 30 years ago, they're being asked, 'Have you ever smoked cannabis?'" Estevan Mayor Roy Ludwig said.
David Dratch, 23, could face up to five years in prison and a $250,000 fine if convicted.
Cannabis users have pointed out that some legal marijuana products come with about 70 grams of plastic, foil and cardboard packaging for just one gram of weed.
The report from the International Drug Policy Consortium overviewed the failure of the 10-year global strategy from the United Nations, which intended to eradicate the illicit drug market by 2019.
"I want to buy legally! But the prices are almost double what I pay now," one Canadian cannabis user posted on Reddit.
"As just the second country and the first G7 nation to end marijuana prohibition, Canada has positioned itself as a global leader for cannabis business and development."
"If we don't see something happen in 2019, almost all of us will be takeout targets for Canadian players."
Representative Earl Blumenauer told Newsweek he sees a legal cross-border North American market as "not just possible" but "probable."
The Canadian government has warned citizens on its website that legal cannabis use could still cause problems when traveling abroad.
The bill is expected to pass by the end of the Canadian Parliament's term on Friday.
The attorney general has long been an opponent of cannabis legalization.
Briefing reporters on agency's new national drug report, the Acting Administrator of the Drug Enforcement Administration Chuck Rosenberg called marijuana "bad" and "dangerous."