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The Liberals were hoping to legalize recreational use of cannabis by July, but have already indicated that deadline would be pushed back by several weeks to give provincial governments and police authorities time to prepare for the new law.

When asked whether he’d be willing to delay implementing the bill, Trudeau didn’t answer directly, but indicated the Liberals will hold discussions with a number of affected communities as they forge ahead with legalization.

“We’ll continue to consult a broad range of Canadians,” Trudeau said as he entered a meeting of his caucus.

“And as our parliamentary secretary Bill Blair says regularly, legalization is not an event, it’s a process. And that process will continue.”

Two other Senate bodies also called on the government to take more actions to prepare for legalization.

The chamber’s committee on national security and defence urged the government to seek further clarification from the United States about the treatment of Canadian travellers, fearing those who admit using pot legally could face lengthy border interrogations or be turned away entirely.

“Canadians must be confident that they will still be able to cross into the United States without fear that activities legal in Canada will be held against them,” senator and committee chair Gwen Boniface said in a statement.

Concerns were also raised about unintended economic consequences, should Canadians doing business with the U.S. suddenly find themselves unable to cross the border, said Sen. Jean-Guy Dagenais.