https://en.wikipedia.org/wiki/Church_of_the_Lukumi_Babalu_Aye_v._City_of_Hialeah
Church of the Lukumi Babalu Aye, Inc. v. Hialeah, 508 U.S. 520 (1993), was a case in which the Supreme Court of the United States held that an ordinance passed in Hialeah, Florida, forbidding the "unnecessar[y]" killing of "an animal in a public or private ritual or ceremony not for the primary purpose of food consumption", was unconstitutional.