; and (12) minimizing the burden upon victims, witnesses, counsel, and the taxpayer. (b) Initial disclosure to defendants The Attorney General shall instruct Federal prosecutors and law enforcement agents, upon request by the defendant and not later than 14 days after such request, to permit the defendant to inspect and to copy or photograph the full contents of all investigative and case files, excepting only privileged material or attorney work product, to permit inspection, copying, testing, and photographing of disclosed documents or tangible objects, including the following documents or tangible objects: (1) All relevant recorded, written, and oral statements of the defendant or of any codefendant that are within the possession or control of the Government, and any documents relating to the acquisition of such statements. (2) The names and addresses of all persons known to the Government to have information concerning the offense charged, together with all written statements of any such person that are within the possession or control of the Government and that relate to the subject matter of the offense charged. (3) The identity of persons the Government intends to call as witnesses at trial. (4) Any information regarding any inquiry, solicitation, or agreement between the Government and any individual that constitutes an inquiry into or solicitation of cooperation or testimony of the individual. (5) Any reports or written statements of any expert the Government intends to call as a witness at trial, including results of physical or mental examinations, scientific tests, experiments, comparisons, a written description of the substance of the proposed testimony of the expert, the expert’s opinion, and the underlying basis of that opinion, if that report or written statement of the expert is material to preparing the defense or the Government intends to use the item in its case-in-chief at trial. At the defendant’s request, the Government must give to the defendant a written summary of any testimony that the