North Carolina General Statutes Chapter 15A. Criminal Procedure Act § 15A-1215. Alternate jurors

(a) The judge may permit the seating of one or more alternate jurors. Alternate jurors must be sworn and seated near the jury with equal opportunity to see and hear the proceedings. They must attend the trial at all times with the jury, and obey all orders and admonitions of the judge. When the jurors are ordered kept together, the alternate jurors must be kept with them. The court should ensure that the alternate jurors do not discuss the case with anyone until that alternate replaces a juror or is discharged. If at any time prior to a verdict being rendered, any juror dies, becomes incapacitated or disqualified, or is discharged for any other reason, an alternate juror becomes a juror, in the order in which selected, and serves in all respects as those selected on the regular trial panel. If an alternate juror replaces a juror after deliberations have begun, the court must instruct the jury to begin its deliberations anew. In no event shall more than 12 jurors participate in the jury's deliberations. Alternate jurors receive the same compensation as other jurors and, unless they become jurors, must be discharged in the same manner and at the same time as the original jury.

(b) In all criminal actions in which one or more defendants is to be tried for a capital offense, or enter a plea of guilty to a capital offense, the presiding judge shall provide for the selection of at least two alternate jurors, or more as he deems appropriate. The alternate jurors shall be retained during the deliberations of the jury on the issue of guilt or innocence under such restrictions, regulations and instructions as the presiding judge shall direct. In case of sequestration of a jury during deliberations in a capital case, alternates shall be sequestered in the same manner as is the trial jury, but such alternates shall also be sequestered from the trial jury. In no event shall more than 12 jurors participate in the jury's deliberations.