Both the State and the defendant have a duty timely to supplement discovery. If, subsequent to compliance with these Rules or orders pursuant thereto, a party discovers additional material or information which is subject to disclosure, that party shall promptly notify the other party or the other party's attorney of the existence of such additional material or information and, if the additional material or information is discovered during trial, the court shall also be notified.
Miss. R. Crim. P. 17.8
Comment
Rule 17.8 is based upon former Rule 9.04 (E.) of the Uniform Rules of Circuit and County Court.