Cite as: 521 U. S. 346 (1997)
Opinion of the Court
confinement. And the conditions surrounding that confinement do not suggest a punitive purpose on the State's part. The State has represented that an individual confined under the Act is not subject to the more restrictive conditions placed on state prisoners, but instead experiences essentially the same conditions as any involuntarily committed patient in the state mental institution. App. 50-56, 59-60. Because none of the parties argues that people institutionalized under the Kansas general civil commitment statute are subject to punitive conditions, even though they may be involuntarily confined, it is difficult to conclude that persons confined under this Act are being "punished."
Although the civil commitment scheme at issue here does involve an affirmative restraint, "the mere fact that a person is detained does not inexorably lead to the conclusion that the government has imposed punishment." United States v. Salerno, 481 U. S. 739, 746 (1987). The State may take measures to restrict the freedom of the dangerously mentally ill. This is a legitimate nonpunitive governmental objective and has been historically so regarded. Cf. id., at 747. The Court has, in fact, cited the confinement of "mentally unstable individuals who present a danger to the public" as one classic example of nonpunitive detention. Id., at 748- 749. If detention for the purpose of protecting the community from harm necessarily constituted punishment, then all involuntary civil commitments would have to be considered punishment. But we have never so held.
Hendricks focuses on his confinement's potentially indefinite duration as evidence of the State's punitive intent. That focus, however, is misplaced. Far from any punitive objective, the confinement's duration is instead linked to the stated purposes of the commitment, namely, to hold the person until his mental abnormality no longer causes him to be a threat to others. Cf. Jones, 463 U. S., at 368 (noting with approval that "because it is impossible to predict how long it will take for any given individual to recover [from insan-
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