Can a federal judge order in camera review of in camera testimony from a federal grand jury?

Defendant sought federal habeas relief, claiming the dismissal of the discovery request on the grounds he had no proceeding pending in the court violated his constitutional rights under Brady v. Maryland. Relying on decisional law involving the right of access to grand jury testimony, the Hopkinson court ordered an in camera review of the testimony to determine whether such testimony might be beneficial to defendant. (866 F.2d at p. 1221.)