Joseph P. Bradley, Hamilton v. Dillin — Opinion of the Court
“ To provide the 'rules and regulations' for conducting a trade relates to the conduct of the persons engaged in it, their methods of transacting their business, the imposition of such checks and safeguards as will secure a compliance with the law. To make such trade contribute in any essential form to the revenues of the country is the exercise of one of the highest prerogatives of the government, and is to be determined upon grounds widely different from the supervision and policing of the trade itself. ”
