Chin Bak Kan v. United States

Background

A Chinese person was arrested under a series of federal laws that suspended Chinese laborers’ entry and required certificates to remain or return. A Chinese inspector filed the complaint, and the case went first before a United States commissioner, then to a federal judge, both of whom found the person unlawfully present and ordered removal. The record shows Congress had created certificate and registration rules and authorized commissioners to hear such cases. The Court was asked to review questions about the treaty and the commissioner’s authority.

Reasoning

The core question was whether a United States commissioner could decide factual claims about citizenship and lawful right to remain. The Court explained that a commissioner is a quasi‑judicial officer authorized by statute to act like a judge in these hearings and may require affirmative proof of lawful status. A mere assertion of citizenship does not avoid the need to present facts under the statutory test. Because the case was decided by a commissioner and affirmed by a district judge, the Supreme Court declined to reexamine the factual findings already adjudicated.

Real world impact

The decision means officials at the local hearing level can determine whether a detained Chinese person has shown the affirmative proof required to stay. People without the required certificate or convincing proof may be deported, and courts will not allow repeated rehearings on the same factual claims after two adverse decisions. The Court also noted the treaty‑repeal question had been resolved against repeal in a related decision.