MEMORANDUM **

Federal prisoner Aaron Hall appeals pro se from the district court’s judgment denying his 28 U.S.C. § 2241 habeas petition. We have jurisdiction under 28 U.S.C. § 1291. We review de novo a district court’s denial of a 28 U.S.C. § 2241 habeas *755 corpus petition, see Mora-Meraz v. Thomas, 601 F.3d 933, 939 (9th Cir. 2010), and we affirm.

Hall argues that his right to due process was violated by a Disciplinary Hearing Officer’s (“DHO”) determination that he committed the prohibited act of “possession, manufacture, or introduction of a hazardous tool.” The record reflects that the proper constitutional safeguards were met and that “some evidence” supports the DHO’s findings. See Superintendent v. Hill, 472 U.S. 445, 455, 105 S.Ct. 2768, 86 L.Ed.2d 356 (1985) (requirements of due process are satisfied if “some evidence” supports disciplinary decision); Wolff v. McDonnell, 418 U.S. 539, 563-70, 94 S.Ct. 2963, 41 L.Ed.2d 935 (1974) (setting forth due process requirements in prison disciplinary proceedings that implicate a liberty interest). Hall specifically contends that prison officials failed timely to advise him of his right to remain silent during the prison investigation and sought to coerce a confession. Even assuming some error in the DHO’s use of Hall’s admission, the DHO’s determination that he possessed the items was sufficiently supported by the evidence. Furthermore, contrary to Hall’s contention, Officer Coleman’s involvement in the investigation did not violate prison rules. See 28 C.F.R. §§ 541.14-.16 (2010).

Finally, Hall’s contention that he sought the testimony of Officer Perkins at his disciplinary hearing is not supported by the record.

Hall’s remaining contentions are without merit.

AFFIRMED.