Disclosure by Defendant

97 If the defendant requests discovery under Rule 17, the defendant shall, subject to constitutional limitations, promptly disclose to the prosecutor and permit the prosecutor to inspect, copy, test, and photograph the following information and material which corresponds to that which the defendant sought and which is in the possession, custody, or control of the defendant or the defendant’s attorney, or the existence of which is known, or by the exercise of due diligence may become known, to the defendant or defendant’s counsel: (1) Names and addresses of all witnesses in chief which the defendant may offer at trial, together with a copy of the contents of any statement (written, recorded or otherwise preserved) of each such witness and the substance of any oral statement made by any such witness; (2) Any physical evidence, photographs, and data or information that exists in electronic or magnetic form which the defendant may offer in evidence; and (3) Any reports, statements, or opinions of experts which the defendant may offer in evidence.