(a) Discretionary Materials. The court may permit the jury, upon retiring for deliberation, to take to the jury room:
(1) a copy of the charges against the defendant;
(2) forms of verdict approved by the court, after being first submitted to counsel;
(3) all things received in evidence other than depositions. If the thing received in evidence is a public record or a private document which, in the opinion of the court, ought not to be taken from the person having it in custody, a copy shall be taken or sent instead of the original.
(b) Mandatory Materials. The court must provide the jury, upon retiring for deliberation, with a written copy of the instructions given to take to the jury room.