by the U.S. Supreme Court, WONG WING v. U S (1896)
“ If the improsonment of a human being at hard labor in a penitentiary for any misconduct or offense is not punishment, it is difficult to understand how anything short of the infliction of the death penalty for such misconduct or offense is punishment. It would seem to be not only punishment, but punishment infamous in its character, which, under the provisions of the constitution of the United States, can only be inflicted upon a person after his due conviction of crime, pursuant to the forms and provisions of law. ”
