“That tragic consequence happens today when a trespass law is used to bludgeon those who peacefully exercise a First Amendment right to protest to government against one of the most grievous of all modern oppressions which some of our States are inflicting on our citizens.
What we do today disregards the admonition in De Jonge v. State of Oregon:
‘These (First Amendment) rights may be abused by using speech or press or assembly in order to incite to violence and crime. The people through their Legislatures may protect themselves against that abuse. But the legislative intervention can find constitutional justification only by dealing with the abuse. The rights themselves must not be curtailed. The greater the importance of safeguarding the community from incitements to the overthrow of our institutions by force and violence, the more imperative is the need to preserve inviolate the constitutional rights of free speech, free press and free assembly in order to maintain the opportunity for free political discussion, to the end that government may be responsive to the will of the people and that changes, if desired, may be obtained by peaceful means. Therein lies the security of the Republic, the very foundation of constitutional government.’
Today a trespass law is used to penalize people for exercising a constitutional right. Tomorrow a disorderly conduct statute, a breach-of-the-peace statute, a vagrancy statute will be put to the same end. It is said that the sheriff did not make the arrests because of the views which petitioners espoused. That excuse is usually given, as we know from the many cases involving arrests of minority groups for breaches of the peace, unlawful assemblies, and parading without a permit. The charge against William Penn, who preached a nonconformist doctrine in a street in London, was that he caused ‘a great concourse and tumult of people’ and contempt of the King and ‘to the great disturbance of his peace.’ That was in 1670. In modern times, also, such arrests are usually sought to be justified by some legitimate function of government. Yet by allowing these orderly and civilized protests against injustice to be suppressed, we only increase the forces of frustration which the conditions of second-class citizenship are generating amongst us.”
Adderley v. State of Fla., 385 U.S. 39, 55-56 (1966) (Douglas, J., dissenting) (internal citations omitted).