Appellant Geary Otis was charged in a seven-count indictment with malice murder and other offenses arising out of the death of one victim and the assault of another on June 17, 2013. On April 7, 2014, a jury was impaneled and sworn, and the State and defense presented their opening statements. At the conclusion of its opening statement, the defense revealed its intent to pursue an insanity defense, for which it had not given prior notice to the State. Outside the presence of the jury, the State objected to the raising of this defense due to the lack of prior notice. In response, the defense asserted that because Otis would not be calling an expert witness to support the defense, he was not required to give advance notice pursuant to Uniform Superior Court Rule (USCR) 31.11 and what is now Rule 31.5 (B)2 (formerly Rule 31.4), and relied upon the holding in Abernathy v. State, 265 Ga. 754 (462 SE2d 615) (1995).

At a hearing on the issue the following day, the trial court, sua sponte, and over appellant’s objection, declared a mistrial and rescheduled the case for trial in two weeks. Appellant filed a plea in bar on the ground of double jeopardy and, after conducting a hearing on the double jeopardy issue, the trial court denied appellant’s plea in bar. On appeal, Otis asserts the trial court erred in declaring a mistrial and in denying his plea in bar. We agree, and reverse.

*545In Abernathy, this Court stated that “[b]ecause the purpose of notice is to give the State an opportunity to obtain an independent expert mental health evaluation and prepare its evidence in rebuttal, ... [a defendant] need not provide notice pretrial if he intends to present evidence of mental illness solely through lay witnesses.” Id. at 755 (2). At the hearing on the notice issue, the State acknowledged this Court’s interpretation of USCR 31.1 in the Abernathy opinion, and did not seek a mistrial, hut only a continuance in order to prepare to present evidence to rebut the insanity defense. The trial court, however, premised its analysis of the mistrial issue upon its conclusion that the Abernathy holding is inapplicable outside the context of an insanity defense pursued in the penalty phase of a death penalty case. Accordingly, the trial court declared a mistrial because it found Otis had failed to comply with the mandatory notice requirement contained in USCR 31.1.

Although Abernathy was decided in the context of interim review of a death penalty case, this Court’s holding and reasoning were not limited to that context. The Court of Appeals has interpreted Abernathy in this manner,3 as well as a leading treatise on Georgia criminal procedure. See Daniel’s Criminal Trial Practice (2015-2016 ed.), § 14:92. In the two decades since this Court issued the Abernathy opinion, the Council of Superior Court Judges has not sought to amend the Uniform Superior Court Rules in any manner that would narrow the Abernathy holding in this regard. Accordingly, the circumstances in this case did not demand entry of mistrial. The trial court erred in entering a mistrial over the appellant’s objection because appellant did not violate USCR 31.1 when he announced his intent to raise the insanity defense based solely on lay witness testimony without first giving timely notice to the State. As a result, appellant may not be retried. See Bagwell v. State, 129 Ga. 170, 171 (58 SE 650) (1907) (“[W]here a mistrial has been improperly declared [over the protest of the accused], the prisoner can not be again tried.”).

Judgment reversed.

concurring.

I join the Court’s opinion in full, because it correctly applies to the circumstances of this case the Court’s clear holding interpreting Uniform Superior Court Rule 31.1 and what is now Rule 31.5 in Abernathy v. State, 265 Ga. 754 (462 SE2d 615) (1995): “We hold that pretrial notice of the defense’s intent to present mental health evidence may be required only when the evidence is presented through *546experts.” Id. at 754.1 question the correctness of that holding, which was based on the proposition that “the purpose of notice is to give the State an opportunity to obtain an independent expert mental health evaluation and prepare its evidence in rebuttal.” Id. at 755. That may be the primary purpose of the notice rules, but the Abernathy opinion never quoted or discussed the actual language of the rules, which speaks of the defendant’s intention “to raise the issue of insanity or mental illness,” USCR 31.1 (emphasis added), rather than “to introduce expert evidence on insanity or mental illness” — even though other provisions of Rule 31.1 speak in terms of providing notice of evidence rather than issues (e.g., the defendant’s “intention to introduce evidence of specific acts of violence by the victim”).

In any event, we should apply Abernathy as a matter of stare decisis, because it was an interpretation of court rules. If the holding of Abernathy was incorrect or simply should be different as a matter of policy, it can be changed through the rule-making process, which is even easier than revising an incorrectly interpreted statute. Cf. Ga. Dept. of Natural Resources v. Center for a Sustainable Coast, Inc., 294 Ga. 593, 601 (755 SE2d 184) (2014) (explaining that the doctrine of stare decisis is more compelling for decisions interpreting statutes than decisions interpreting constitutional provisions because of the comparative difficulty for the democratic process to correct or alter the decision). And as the Court’s opinion notes, the uniform rules have not been amended in the two decades since Abernathy to alter the holding in that case.

I write to emphasize that USCR 31.1 and 31.5 need to be revised, no matter what we think oí Abernathy. If we are going to continue to follow Abernathy, the holding of that case should be made explicit in the text of the rules, to ensure that trial judges, lawyers, and litigants who read the rules understand that this Court has imposed a significant limitation upon their scope.4 Under Abernathy, the rules should refer to the intention to raise “the issue of insanity or mental illness” *547(and in Rule 31.5, mental retardation as well) “using expert evidence.” If instead it is decided that Abernathy should not be followed, the rules should clearly abrogate its holding by adding “using expert or non-expert evidence.” Or perhaps further consideration would result in the adoption of amended rules that, like the federal rules of criminal procedure, treat the affirmative defense of insanity differently from other matters involving the defendant’s mental condition, requiring notice of the former whether based on expert or lay evidence and notice of the latter only when expert evidence will be offered. See Fed. R. Crim. R 12.2 (a) (requiring a defendant to provide pretrial notice of intent to assert “a defense of insanity”) and (b) (requiring a defendant to provide pretrial notice of intent to introduce “expert evidence relating to a mental disease or defect or any other mental condition of the defendant” bearing on the issue of guilt in any case or punishment in a death penalty case).

Notice requirements for criminal defendants are departures from the common law, but they may provide the State a fair opportunity to prepare to rebut defenses or defense theories that are unusual or depend on evidence not normally gathered in the course of preparing a prosecution, and thus they may produce trials better aimed at the fundamental objective of our criminal justice system, which is accurately determining the guilt or innocence of the accused. Notice requirements may also allow the trial court to better manage the trial process, which may be complicated in many ways by such issues. It is apparent that the trial court in this case was striving to produce a fair trial, but the court erred in not abiding by our holding in Abernathy. The result is that Otis cannot be re-tried for the murder and other crimes he is alleged to have committed.

I am authorized to state that Justice Blackwell joins in this concurrence.