DECISION JUDGMENT
ADJUDGED that the petition is granted, without costs or disbursements, the order dated April 5, 2000, is vacated, and the matter is remitted to the Supreme Court, Orange County, for a rehearing and review before a jury.
The extraordinary remedy of mandamus will lie only to compel the performance of a ministerial act and only when there exists a clear legal right to the relief sought (see, Matter of Legal Aid Soc. of Sullivan County v. Scheinman, 53 N.Y.2d 12, 16). The petitioner, a person found not responsible for criminal charges by reason of mental disease or defect, has a clear legal right to jury review of the issue of whether he is mentally ill and subject to a continued deprivation of liberty, and the Supreme Court was required to provide him with that review (see, CPL 330.20, Mental Hygiene Law § 9.35; 14 NYCRR 541.13[b]; Matter of Launcelot T. v. Mullen, 264 A.D.2d 697). We note, however, that while the petitioner is entitled to a jury determination on the issue of whether he is mentally ill (see, CPL 330.20; Mental Hygiene Law § 9.35), there is no right to a jury trial on the issue of whether a person suffers from a "dangerous mental disorder" (CPL 330.20[c]) requiring secure detention (see, Matter of Barber v. Rochester Psychiatric Ctr., 250 A.D.2d 87, 91; Matter of Robert C. v. Wack, 167 Misc.2d 677; Matter of Daniel R. v. Wack, 167 Misc.2d 74; Matter of Maureen A. v. Wack, 153 Misc.2d 600).