Graffeo, J.
Contrary to petitioner's contention, the misbehavior report, endorsed by two correction officers, and the corroborating testimony at the hearing provide substantial evidence to support the determination finding petitioner guilty of violating the prison disciplinary rules which prohibit inmates from assaulting staff, disobeying a direct order, interfering with an employee and harassment (see, Matter of McBride v. Selsky, 257 A.D.2d 930). Testimony at the hearing established that when inmates were returning from recreation, petitioner disregarded numerous orders to leave the commissary area, came toward a correction officer in a threatening manner and the correction officer was struck in the face while attempting to subdue him. The differing testimony presented by petitioner and his inmate witnesses presented a credibility issue for the Hearing Officer to resolve (see, id.). To the extent petitioner challenges the absence from the misbehavior report of endorsements from correction officers who witnessed the incident, petitioner has established no prejudice resulting therefrom (see, Matter of Williams v. Bennett, 273 A.D.2d 679, 711 N.Y.S.2d 344).
We also reject petitioner's assertion of Hearing Officer bias. Although the Hearing Officer failed to provide a written explanation for his refusal to permit testimony from other unnamed inmate witnesses present at the commissary at the time of the incident, the record reveals that such testimony would have been redundant given the testimony from four other eyewitness inmates (see, Matter of Daum v. Goord, 274 A.D.2d 715, 711 N.Y.S.2d 212). Regarding petitioner's assertion that the Hearing Officer failed to call a correction officer mentioned in the misbehavior report, we note that petitioner never requested testimony from the witness and the Hearing Officer is not obligated to present petitioner's case for him (see, Matter of Pitsley v. Senkowski, 237 A.D.2d 829, 830). Furthermore, we do not find the penalty imposed to be harsh or excessive.
Petitioner's remaining contentions, to the extent that they are properly before this Court, have been reviewed and found to be without merit.
ADJUDGED that the determination is confirmed, without costs, and petition dismissed.