Groendyke Transport, Inc. v. Davis, 406 F.2d 1158 (5th Cir.), cert. denied, 394 U.S. 1012, 89 S.Ct. 1628, 23 L.Ed.2d 39 (1969), held only that the due process clause did not preclude a summary disposition, without oral argument, by the National Labor Relations Board. In re January 1974 Special Investigating Grand Jury, 241 Pa. Super. 246, 361 A.2d 325 (1976), a Pennsylvania court held that in the absence of a compelling state interest, an in camera hearing on the issue of attorney disqualification did not adequately protect a grand jury witness's right to the counsel of his choice. The portion of the case cited by appellees, concerning the ability of the appellant to a "meaningful appeal" indicates only that on remand, a new in camera hearing would have to be held on the record to enable the reviewing court to evaluate the testimony given.

Cf. In re Grand Jury Empaneled Jan. 21, 1975, 536 F.2d 1009 (3d Cir. 1976); In re Investigation before April 1975 Grand Jury, 174 U.S.App.D.C. 268, 531 F.2d 600 (1976); and In re Investigating Grand Jury, 241 Pa. Super. 246, 361 A.2d 325 (1976), in all of which cases the facts did not support an order of disqualification which distinguished them from our case. None of these last cases dispute the principle.