R v Edwards Books and Art Ltd
R v Edwards Books and Art Ltd [1986] 2 SCR 713 is a leading Supreme Court of Canada decision on the constitutional validity of an Ontario provincial Sunday closing law. The Court found that the legislation was within the power of the province to legislate but it was in violation of the right to freedom of religion under section 2(a) of the Canadian Charter of Rights and Freedoms ("Charter").
Source: Wikipedia — R v Edwards Books and Art Ltd (CC BY-SA 4.0)