State ethics investigators looking into Attorney General Eric Schneiderman’s office and its conduct in relation to the civil fraud prosecution of business titan Maurice “Hank” Greenberg have apparently expanded the inquiry to Schneiderman’s top deputy.

An attorney for Greenberg and another source confirmed yesterday that the Joint Commission on Public Ethics recently received logs of phone calls between Chief Deputy Attorney General Harlan Levy and Nicholas Gravante, a partner at Boies, Schiller & Flexner. The law firm represents Greenberg. Levy, a former Boies Schiller partner, had several discussions in early December with Gravante, the New York Post reported in February. The Post reported that Levy and Gravante exchanged multiple calls at the same time JCOPE was beginning a probe into a possible ethics violation by the lead prosecutor, Assistant Attorney General David Ellenhorn.