Earl Warren,
Lombard v. Louisiana — Opinion of the Court
“ City of Greenville, 373 U.S. 244, 83 S.Ct. 1119, that where an ordinance makes it unlawful for owners or managers of restaurants to seat whites and Negroes together, a conviction under the State's criminal processes employed in a way which enforces the discrimination mandated by that ordinance cannot stand. Equally the State cannot achieve the same result by an official command which has at least as much coercive effect as an ordinance. ”
