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 Co