Summary

by John Marshall Harlan Mugler v. Kansas — Opinion of the Court

They are at liberty, indeed, are under a solemn duty, to look at the substance of things, whenever they enter upon the inquiry whether the legislature has transcended the limits of its authority. If, therefore, a statute purporting to have been enacted to protect the public health, the public morals, or the public safety, has no real or substantial relation to those objects, or is a palpable invasion of rights secured by the fundamental law, it is the duty of the courts to so adjudge, and thereby give effect to the constitution.
Source: Wikisource

by John Marshall Harlan Mugler v. Kansas — Opinion of the Court

Nor can it be said that government interferes with or impairs any one's constitutional rights of liberty or of property, when it determines that the manufacture and sale of intoxicating drinks, for general or individual use, as a beverage, are, or may become, hurtful to society, and constitute, therefore, a business in which no one may lawfully engage. Those rights are best secured, in our government, by the observance, upon the part of all, of such regulations as are established by competent authority to promote the common good.
Source: Wikisource

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