B.C. port union challenges constitutionality of labour minister’s back-to-work order

VANCOUVER — The union representing port supervisors in British Columbia is formally challenging the legal and constitutional authority of the federal labour minister to order them back to work.
In a legal document dated Tuesday, International Longshore and Warehouse Union Local 514 says it’s questioning whether the order issued by Labour Minister Steven MacKinnon last week violates the right to collective bargaining and the right to strike.
The union says these rights are protecting