Ind. Code § 35-37-2-3
(b) If the court finds that the juror has personal knowledge of a material fact, the juror shall be excused and the court shall replace that juror with an alternate. If there is no alternate juror, then the court shall discharge the jury without prejudice, unless the parties agree to submit the cause to the remaining jurors.
As added by Acts 1981, P.L.298, SEC.6.