In this suit, respondent Conner alleged that petitioner and other Hawaii prison officials deprived him of procedural due process when an adjustment committee refused to allow him to present witnesses during a disciplinary hearing and then sentenced him to segregation for misconduct. The District Court granted the officials summary judgment, but the Court of Appeals reversed, concluding that Conner had a liberty interest in remaining free of disciplinary segregation and that there was a disputed question of fact whether he had received all of the process due under Wolff v. McDonnell, 418 U.S. 539. The court based its conclusion on a prison regulation instructing the committee to find guilt when a misconduct charge is supported by substantial evidence, reasoning that the committees duty to find guilt was nondiscretionary. From that regulation, it drew a negative inference that the committee may not impose segregation if it does not find substantial evidence of misconduct, that this is a state-created liberty interest, and that therefore Wolff entitled Conner to call witnesses.

Held:

Neither the Hawaii prison regulation nor the Due Process Clause itself afford Conner a protected liberty interest that would entitle him to the procedural protections set forth in Wolff. Pp. 4-15.

(a) Under Wolff, States may in certain circumstances create liberty interests which are protected by the Due Process Clause. But these interests will generally be limited to freedom from restraint which, while not exceeding the sentence in such an unexpected manner as to give rise to protection by the Due Process Clause of its own force, nonetheless imposes atypical and significant Page II hardship on the inmate in relation to the ordinary incidents of prison life. See also Meachum v. Fano, 427 U.S. 215. The methodology used in Hewitt v. Helms, 459 U.S. 460, and later cases has impermissibly shifted the focus of the liberty interest inquiry from one based on the nature of the deprivation to one based on language of a particular regulation. Under Hewitts methodology, prison regulations, such the one in this case, have been examined to see whether mandatory language and substantive predicates create an enforceable expectation that the State would produce a particular outcome with respect to the prisoners confinement conditions. This shift in focus has encouraged prisoners to comb regulations in search of mandatory language on which to base entitlements to various state-conferred privileges. Courts have, in response, drawn negative inferences from that language. Hewitt creates disincentives for States to codify prison management procedures in the interest of uniform treatment in order to avoid the creation of "liberty" interests, and it has led to the involvement of federal courts in the day-to-day management of prisons. The time has come to return to those due process principles that were correctly established and applied in Wolff and Meachum. Pp. 4-11.

(b) Conner asserts, incorrectly, that any state action taken for a punitive reason encroaches upon a liberty interest under the Due Process Clause even in the absence of any state regulation. Bell v. Wolfish, 441 U.S. 520 (1979), and Ingraham v. Wright, 430 U.S. 651 (1977), distinguished. Pp. 11-13.

(c) Conners discipline in segregated confinement did not present the type of atypical, significant deprivation in which a State might conceivably create a liberty interest. At the time of his punishment, disciplinary segregation mirrored those conditions imposed upon inmates in administrative segregation and protective custody. Moreover, the State later expunged his disciplinary record with respect to the more serious of the charges against him. And, his confinement did not exceed similar, but totally discretionary confinement in either duration or degree of restriction. Conners situat