The Toronto Star recently ran this article;
http://www.thestar.com/living/article/272514This has caused great confusion. Stan Gelman QC Mississauga, graciously researched and provided the following material.
http://www.davidpylyp.com/ShowResources.cfm?Pageid=46727&TypeOfPage=3 Any purchases prior to the law being voted in appear to be clearly exempted.