In re Ellis

On April 10, 1941, the commissioner of' investigation of the city of New York caused to be served upon two banks two subpoenas duces tecum commanding them to appear before him and be examined in the matter of “an executive inquiry,” which was not therein described or identified otherwise than as being “ an investigation now being conducted ” before said commissioner pursuant to chapter 34 of the New York City Charter, and to bring and produce a copy of the signature card of a designated account, all correspondence and written agreements relating *889thereto, a transcript thereof from January 1,…