Canadians linked to newly legal pot industry could be barred from US

More than 100 recreational marijuana stores will open across Canada this week, bringing opportunities for international business and tourism — and creating potential conflict with U.S. authorities as money and people flow across the border.

Experts see major questions of U.S. policy toward Canada when stores open Wednesday, involving criminal law, access to banking, and border crossings. Officials long anticipated fulfillment of Prime Minister Justin Trudeau’s 2015 campaign pledge, but the precise U.S. response remains unclear.

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Catia Kossovsky, an attorney at the Hoban Law Group, a law firm that does significant work with cannabis businesses, said that “there are a lot of questions that aren’t answered.”

“If you also look at the release, it says it’s really up to the CBP officer,” she said.