2667, 33 L.Ed.2d 626 (1972) (quoting United States v. Stone, 429 F.2d 138, 140 (2d Cir.1970)); In re Grand Jury Subpoena for the Prod. of Certain New York Stare Sales Tax Records, 382 F.Supp. 1205, 1206 (W.D.N.Y.I974) (quoting Stone, 429 F.2d at 140). In accordance with its broad mandate to investigate possible criminal a