In March 1862 U.S. Congressman Henry May (D-Maryland), who had been imprisoned in the new wave of arrests and held without charges from September 1861 to December 1861, introduced a bill requiring the federal government either to indict by grand jury or release all other "political prisoners" still held without "habeas corpus". May's bill passed the House in summer 1862, and its position would later be included in the Habeas Corpus Suspension Act 1863, which would require actual indictments for suspected traitors.