ns, intended to undermine the strong policy against permitting appellate interruption of grand jury *558 proceedings. Accord In re April 1977 Grand Juty Subpoenas. 584 F.2d 1366, 1369 (6th Cir.1978) ("[Section 1292(b) ] limits interim review of 'a controlling question of law' to civil cases only an

RAND JURY PG1 07-1034/113)/No. OLY-64 SUBPOENA FOR: El PERSON DOCUMENTS OR OBJECT(SJ • YOU ARE HEREBY COMMANDED to appear and testifybefore the Grand Juty oftheUnited States District Court it the place, date and time specified below. PLACE:. . . ' United States District COurthouSe • 701 Clematis