Ruppert v. Caffey — Opinion of the Court
“ If the war power of Congress to effectively prohibit the manufacture and sale of intoxicating liquors in order to promote the nation's efficiency in men, munitions and supplies is as full and complete as the police power of the states to effectively enforce such prohibition in order to promote the health, safety and morals of the community, it is clear that this provision of the Volstead Act is valid and has rendered immaterial the question whether plaintiff's beer is intoxicating. ”
