Mahlon Pitney, United States v. Lewis — Opinion of the Court
“ The plain object of the clause is to safeguard the food products in question against alteration or substitution, and thus enable the officials of the government to systematize and render effective the process of inspection; an object that is interfered with if the tags or other identification devices are destroyed, whether they be destroyed by those engaged in the business or by others. Moreover, one of the other prohibitions of the act is in terms limited to those engaged in the interstate commerce of meat or meat food products. ”
