80
Opinion of the Court
Third, "the Due Process Clause contains a substantive component that bars certain arbitrary, wrongful government actions 'regardless of the fairness of the procedures used to implement them.' " Zinermon v. Burch, 494 U. S. 113, 125 (1990). See also Salerno, supra, at 746; Daniels v. Williams, 474 U. S. 327, 331 (1986). Freedom from bodily restraint has always been at the core of the liberty protected by the Due Process Clause from arbitrary governmental action. Youngberg v. Romeo, 457 U. S. 307, 316 (1982). "It is clear that commitment for any purpose constitutes a signifi-cant deprivation of liberty that requires due process protection." Jones, supra, at 361 (internal quotation marks omitted). We have always been careful not to "minimize the importance and fundamental nature" of the individual's right to liberty. Salerno, supra, at 750.
A State, pursuant to its police power, may of course imprison convicted criminals for the purposes of deterrence and retribution. But there are constitutional limitations on the conduct that a State may criminalize. See, e. g., Brandenburg v. Ohio, 395 U. S. 444 (1969); Robinson v. California, 370 U. S. 660 (1962). Here, the State has no such punitive interest. As Foucha was not convicted, he may not be punished. Jones, supra, at 369. Here, Louisiana has by reason of his acquittal exempted Foucha from criminal responsibility as La. Rev. Stat. Ann. § 14:14 (West 1986) requires. See n. 1, supra.
The State may also confine a mentally ill person if it shows
"by clear and convincing evidence that the individual is mentally ill and dangerous," Jones, 463 U. S., at 362. Here, the State has not carried that burden; indeed, the State does not claim that Foucha is now mentally ill.
We have also held that in certain narrow circumstances persons who pose a danger to others or to the community may be subject to limited confinement and it is on these cases, particularly United States v. Salerno, supra, that the State relies in this case.
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