Chief Justice Hughes delivered the opinion of the Court.
If we cut through mere details of procedure, the operation and effect of the statute in substance is that public authorities may bring the owner or publisher of a newspaper or periodical before a judge upon a charge of conducting a business of publishing scandalous and defamatory matter -- in particular that the matter consists of charges against public officers of official dereliction -- and unless the owner or publisher is able and disposed to bring competent evidence to satisfy the judge that the charges are true and published with good motives and for justifiable ends, his newspaper or periodical is suppressed and further publication is punishable as a contempt. This is of the essence of censorship.
The question is whether a statute authorizing such proceedings in restraint of publication is consistent with the conception of the liberty of the press as historically conceived and guaranteed. In determining the extent of the constitutional protection, it has been generally, if not universally, considered that it is the chief purpose of the guaranty to prevent previous restraints upon publication. The struggle in England, directed against the legislative power of the licenser, resulted in renunciation of the censorship of the press. The liberty deemed to be established was thus described by Blackstone: "The liberty of the press is indeed essential to the nature of a free state; but this consists in laying no previous restraints upon publications, and not in freedom from censure for criminal matter when published. Every freeman has an undoubted right to lay what sentiments he pleases before the public; to forbid this, is to destroy the freedom of the press; but if he publishes what is improper, mischievous or illegal, he must take the consequence of his own temerity." The criticism upon Blackstone's statement has not been because immunity from previous restraint upon publication has not been regarded as deserving of special emphasis, but chiefly because that immunity cannot be deemed to exhaust the conception of the liberty guaranteed by state and federal constitutions...
The objection has also been made that the principle as to immunity from previous restraint is stated too broadly, if every such restraint is deemed to be prohibited. That is undoubtedly true; the protection even as to previous restraint is not absolutely unlimited. But the limitation has been recognized only in exceptional cases. No one would question but that a government might prevent actual obstruction to its recruiting service or the publication of the sailing dates of transports or the number and location of troops. On similar grounds, the primary requirements of decency may be enforced against obscene publications. The security of the community life may be protected against incitements to acts of violence and the overthrow by force of orderly government...These limitations are not applicable here...
The exceptional nature of its limitations places in a strong light the general conception that the liberty of the press, historically considered and taken up by the Federal Constitution, has meant, principally although not exclusively, immunity from previous restraints, or censorship...Public officers, whose character and conduct remain open to debate and free discussion in the press, find their remedies for false accusations in actions under libel laws providing for redress and punishment, and not in proceedings to restrain the publications of newspapers and periodicals. The fact that the liberty of the press may be abused by miscreant purveyors of scandal does not make any the less necessary the immunity of the press from previous restraint in dealing with official misconduct. Subsequent punishment for such abuses as may exist is the appropriate remedy, consistent with constitutional privilege.
The statute in question cannot be justified by reason of the fact that the publisher is permitted to show, before injunction issues, that the matter published is true and is published with good motives and for justifiable ends. If such a statute is valid, it would be equally permissible for the legislature to provide that at any time the publisher of any newspaper could be brought before a court, or even an administrative officer (as the constitutional protection may not be regarded as resting on mere procedural details), and required to produce proof of the truth of his publication, or of what he intended to publish and of his motives, or stand enjoined. If this can be done, the legislature may provide the machinery for determining in the complete exercise of its discretion what are justifiable ends and restrain publication accordingly. And it would be but a step to a complete system of censorship. We hold the statute, so far as it authorized the proceedings in this action, to be infringement of the liberty of the press guaranteed by the Fourteenth Amendment...
Judgement reversed.