During an Inquiry into the Validity of a Verdict or Indictment.
Prohibited Testimony or Other Evidence. During an inquiry into the validity of a verdict or indictment, a juror may not testify about any statement made or incident that occurred during the jury’s deliberations; the effect of anything on that juror’s or another juror’s vote; or 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.
Exceptions. A juror may testify about whether:
extraneous prejudicial information was improperly brought to the jury’s attention;
an outside influence was improperly brought to bear on any juror; or
a mistake was made in entering the verdict on the verdict form.
[Pub. L. 93–595, § 1], Jan. 2, 1975, [88 Stat. 1934]; [Pub. L. 94–149, § 1(10)], Dec. 12, 1975, [89 Stat. 805]; Mar. 2, 1987, eff. Oct. 1, 1987; Apr. 12, 2006, eff. Dec. 1, 2006; Apr. 26, 2011, eff. Dec. 1, 2011.)