JUROR’S COMPETENCY AS A WITNESS

(a) At the trial. A juror may not testify as a witness before any jury drawn from the panel of which the juror was a member. If a juror is called to testify, the court must give any party an opportunity to object outside the jury’s presence. (b) During an inquiry into the validity of a verdict or indictment. (1) Prohibited testimony or other evidence. During an inquiry into the validity of a verdict or indictment, a juror may not testify about: (A) Any statement made or incident that occurred during the jury’s deliberations; 36 (B) The effect of anything on that juror’s or another juror’s vote; or (C) Any juror’s mental processes concerning the verdict or indictment. The court may not receive a juror’s affidavit or evidence of a juror’s statement on these matters. (2) Exceptions. A juror may testify about whether: (A) Extraneous prejudicial information was improperly brought to the jury’s attention; or (B) An outside influence was improperly brought to bear on any juror.