United Food and Commercial Workers, Local 1518 v KMart Canada Ltd

United Food and Commercial Workers, Local 1518 v KMart Canada Ltd, [1999] 2 S.C.R. 1083 is a leading Supreme Court of Canada (SCC) decision on freedom of expression under section 2(b) of the Canadian Charter of Rights and Freedoms. The Court struck down a provision in the Labour Relations Code of British Columbia, which prohibited strikers from distributing fliers outside of their primary picketing area.

The SCC unanimously held that the provision, which was part of a prohibition on secondary picketing, clearly violated the freedom of expression. The violation could not be saved as the purpose of the prohibition, which was to limit the disruption of those who were not involved in the dispute, was not proportional to the prohibition. Handing out leaflets is a traditional means for under-funded groups to get their message to the public and without it they would have no reasonable alternatives.

In reversing this aspect of the laws against secondary picketing, the ruling represented a major shift in picketing practices and part of a post-Charter trend in favour of labour. It was also notable as the first time that the SCC referred to the Internet in a decision.