The US Supreme Court did not rule on the constitutionality of "separate but equal" in this instance, but did find that the railroad had failed to provide the passenger with the same level of service provided to a white passenger with the same class of ticket. The Court found this violated the Interstate Commerce Act, which made it illegal for a railroad in interstate commerce “to subject any particular person… to any undue or unreasonable prejudice or disadvantage in any respect whatsoever.”