“ It is entirely settled that the authority of Congress to prohibit aliens from coming within the United States, and to regulate their coming, includes authority to impose conditions upon the performance of which the continued liberty of the alien to reside within the bounds of this country may be made to depend ”

“ From the return and supplemental return of the respondent it appears that the appellant is an alien, and that as the result of a hearing and rehearing conducted in compliance with rule 35, paragraph E of the Rules and Regulations of the Department of Commerce and Labor, she was found to be in the United States in violation of § 3 of the act referred to, and subject to deportation, in that she was a prostitute, and had been found practising prostitution within three years after her entry into the United States. ”

“ The appellant raises some other constitutional objections, viz.: that the immigration act vests in the Federal authorities the power to try an immigrant for a violation of the penal laws of the state of which he has become a resident, and so interferes with the police power of the state; that the act vests judicial powers in an executive branch of the government ”