CHICAGO — The former Chief of Staff to the Illinois Speaker of the House of Representatives was indicted today for allegedly providing false material declarations under oath to a federal grand jury and attempting to obstruct its investigation into allegations of public corruption. TIMOTHY MAPES, 66, of Springfield, Ill., is charged with one count of making false declarations before a grand jury and one count of attempted obstruction of justice, according to an indictment returned in U.S. District Court in Chicago. Arraignment has not yet been scheduled. The indictment was announced by John R. Lausch, Jr., United States Attorney for the Northern District of Illinois; Emmerson Buie, Jr., Special Agent-in-Charge of the Chicago Field Office of the FBI; and Tamera Cantu, Acting Special Agent-in-Charge of the IRS Criminal Investigation Division in Chicago. The government is represented by Assistant U.S. Attorneys Julia Schwartz, Amarjeet S. Bhachu, Diane MacArthur, Timothy J. Chapman, Sarah E. Streicker, Matthew L. Kutcher, and Michelle Kramer. The officials noted that the federal investigation into the allegations of public corruption remains ongoing.