POSITION ANNOUNCEMENT 24-01. Assistant Federal Public Defender – Trial Unit. Office of the Federal Public Defender. District of Arizona, Tucson. THE FEDERAL PUBLIC DEFENDER is accepting applications for an assistant federal public defender to be stationed in Tucson. More than one position may be filled from this announcement. The federal defender organization operates under authority of the Criminal Justice Act, 18 U.S.C. § 306A, to provide defen...