A Superior Court judge has denied a motion by the Bergen County Prosecutor’s Office to compel a criminal defense lawyer to testify before a grand jury against his own client.

Judge Margaret Foti issued a written ruling Thursday on the motion to compel Bloomfield attorney Landry Belizaire to testify about his representation of Roydell Cameron on sexual assault charges. But the judge’s 28-page opinion has not been made public because the prosecutor’s office sought to have it placed under seal. The prosecutor’s office said the opinion should not be made public because it contains grand jury information.