Ah Sin v. Wittman

In Ah Sin v. Wittman, 198 U. S. 500, 25 S. Ct. 756, 49 L. Ed. 1142 (1905), the distinction is drawn between the right to use property for a lawful purpose and the claim of a privilege to visit a gambling house which the state, in the exercise of its police powers, could suppress at pleasure. It has never been held that one who is guilty of a crime cannot be punished merely because others equally guilty have not been prosecuted or convicted.