Davis

The petitioner has appealed from a decision of the Superior Court denying his petition under G. L. c. 123A, § 9, for release from the center for the treatment of the sexually dangerous which is maintained by the Commissioner of Mental Health at the Massachusetts Correctional Institution at Bridgewater (center).

*733The Commonwealth’s first two witnesses were psychiatrists who testified to their respective opinions that the petitioner was no longer a sexually dangerous person (SDP) within the meaning of G. L. c. 123A, § l.1 The Commonwealth’s third and last witness identified himself as a nine-year…