R. v. Big M Drug Mart Ltd.
In the case of R. v. Big M Drug Mart Ltd., [1985] 1 S.C.R. 295, 1985 SCC 15 the Supreme Court of Canada was asked to hear an appeal of an acquittal of the drug store on a charge of unlawfully selling goods on Sunday in violation of the Lord's Day Act, 1906.
The Supreme Court ruled that the statute was an unconstitutional violation of Section 2 of The Canadian Charter of Rights and Freedoms, deciding that there was no true secular basis for the legislation and its only purpose was, in effect, to establish a state religious-based requirement, and was therefore invalid.