This appeal presents the question whether the due process clause of the Fourteenth Amendment prohibits a state from requiring a criminal defendant, who pleads legal insanity, to carry the burden of persuasion on that issue. Maine is one of a substantial number of states which require a criminal defendant who raises the defense of legal insanity not only to produce evidence on that issue
1
but also to persuade the jury of his insanity by a preponderance of the evidence. In the instant case, defendant failed
*7
to satisfy this burden. In the first stage of his bifurcated trial, the jury found, beyond a reasonable doubt, that each of the essential elements of the crimes with which he was charged — robbery and arson — were present. At the second stage, the parties presented evidence on the issue of defendant’s legal sanity, but the jury concluded that he had not established his insanity by a preponderance of the evidence.
2
The Maine Supreme Judicial Court affirmed this conviction.
State v. Buzynski,
Our task is Janus-like, compelling us to look backward and forward, to be both analytical and predictive in an area of law which has seen recent significant movement by the Supreme Court. Two older cases,
Davis v. United States,
In arguing that
Leland
has been overruled, appellant bears a heavy burden. Although there are circumstances in which it is appropriate for a court of appeals to disregard the teachings of earlier Supreme Court decisions,
cf. Women’s Liberation Union
v.
Israel,
We therefore undertake a clinical scrutiny of Wilbur to determine its implications for the question before us. 4 In Wilbur, the *8 issue was whether Maine could require a criminal defendant accused of felonious homicide to prove, by a preponderance of the evidence, that he acted in the heat of provoked passion and thereby qualified for the lesser punishment of manslaughter.
The court first looked to history and found that “the clear trend has been toward requiring the prosecution to bear the ultimate burden of proving this fact.”
Addressing the merits, the Court in
Wilbur
rejected the argument that
Winship
applied only to facts which, if not proven, would wholly exonerate the defendant. It observed that the defendant’s liberty and reputation interests are equally implicated by findings determining the degree of criminal liability, and concluded that
Winship
applies to facts which are determinative of the extent of criminal culpability.
This analysis obviously applies when the fact in issue is legal sanity rather than the existence of provocation. The fact of “legal sanity” is determinative not simply of the degree of criminal liability but of criminal culpability vel non. A criminal defendant who is found not guilty by reason of insanity is not criminally responsible. He is free of the stigma of being a criminal and will not be criminally confined. Although civil commitment is a substantial certainty, it is for the purpose of treatment and generally entails a far lesser or qualitatively different interference with the defendant’s liberty. And the societal interest, here as in
Wilbur,
is in the reliability of jury verdicts, it being “critical that the moral force of the criminal law not be diluted by a standard of proof that leaves people in doubt whether innocent men are being condemned.”
Appellant, therefore, has made a preliminary showing that the fact of sanity like the absence of provocation should be proved beyond a reasonable doubt. Therefore, we must proceed, as did the Court in
Wilbur,
to consider the operation and effect of the Maine burden of persuasion rule and the proper interests of the state and the defendant as they are affected by the allocation of the burden of proof.
See
*9
In
Wilbur,
the Court felt obligated to consider the difficulties a state would face in proving an absence of provocation and whether they were sufficient to require giving serious consideration to excusing the prosecution from having to bear the “traditional burden” of proof beyond a reasonable doubt. The court noted that the overwhelming majority of states accepted that burden on the factual issue of provocation,
see id.
at 696 & 701,
To the extent that this discussion in
Wilbur
suggests that whether the prosecution is under a “unique hardship” is critical and, at the same time, sets forth the criteria a court should apply in making such a determination, it possibly provides a basis for concluding that Maine’s rule is valid. Since roughly half the states require the defendant to prove his insanity,
see
W. LaFave & A. Scott,
supra
at 313, the general practice in the country is far from conclusive on the extent of the prosecution’s difficulty. And although-it is difficult to conceive of the issue of insanity being addressed without reference to objective evidence of acts, words, and tests, the issue of sanity, unlike the absence of provocation, perhaps does involve largely a “subjective behavioral criterion”. To the extent that this characterization of the fact in issue is critical, sanity may be different from provocation. On the other hand, we note that the Court left little doubt but that the prosecution must prove mens rea, which often is equally “subjective”, beyond a reasonable doubt; so it may be that no “unique hardship” would be involved.
See
We doubt, however, that the
Wilbur
Court intended that the characterization of the uniqueness of the prosecution’s hardship would be determinative. Since the “requirement of proof beyond a reasonable doubt in a criminal case [is] bottomed on a fundamental value determination . that it is far worse to convict an innocent man than to let a guilty man go free”,
In re Winship, supra,
*10
If the Court pursues this kind of analysis, we suspect, in the absence of any empirical data, that it could conclude that the legitimacy of the state’s shifting of the burden was supported by a sufficient correlation generally between those who commit crimes and their freedom from what the law would deem insanity. We have less confidence in an affirmative answer to a second more critical question: would an acceptably high percentage of innocent criminal defendants be able to persuade a jury of their insanity by a preponderance of the evidence? A defendant who is actually insane may well suffer from the outset in preparing his defense. If the crime is serious, juries may be understandably loath to accept the defense. We note, in passing, that we have held that the prosecution in a federal case may succeed in proving sanity beyond a reasonable doubt even when it introduces no expert testimony on the issue.
United States v. Dube,
To summarize, we see the issue of Leland’s survival as in substantial doubt. Wilbur’s rejection of the “elements” — “affirmative defense” dichotomy for burden determining purposes; the similarity of the legitimate societal and individual interests here and in Winship and Wilbur; Wilbur’s minimizing of the prosecutorial burden; the problems posed by the analytical framework hinted at in Wilbur — particularly the likelihood of truly insane defendant’s successfully carrying their burden — all argue for the overruling of Leland. But the Court has not announced a per se rule. Each affirmative defense must be separately analyzed. Not only is there widespread diversity in practice among the states, but the subjective nature of proof of sanity or insanity may be deemed to be constitutionally significant. Even if the Court applies the precise standards to which we have alluded, we cannot be sure that Leland will fall. See notes 4 & 6, supra. Other policy considerations, moreover, may be held relevant. In short, we cannot with assurance predict with “near certainty” the impending doom of Leland.
Affirmed.
Notes
. Appellant does not attack Maine’s presumption of legal sanity and the corollary that a criminal defendant must produce evidence of legal insanity before the jury may consider the question.
. Although there is a relationship between legal sanity and mens rea, under Maine law it is clear that a legally insane individual can, in some cases, possess the requisite mens rea. Here, the bifurcated trial eliminated any possibility that the lesser burden of persuasion on the question of legal sanity could have influenced the jury determination that defendant possessed the required intent.
Compare Leland v. Oregon,
. The Court saw “no practical difference” between the two burdens which would be significant in constitutional analysis.
. We do not ignore the facts that the majority opinion in
Wilbur
cited
Leland
without disapproval,
. One reason Maine thinks it desirable that the criminal defendant be required to establish his insanity by a preponderance of the evidence is that a jury, which finds a defendant not guilty by reason of insanity, will have made an affirmative finding of insanity, and the jury verdict can form the basis for civil commitment.
*9
See State v. Melvin,
. We think it appropriate to rely on the analysis of this law review article since it not only was prophetic of
Winship
but also was cited by the
Wilbur
Court immediately after the Court stated that “exacting standards” would have to be satisfied before it would uphold a rule which placed the burden of persuasion on a criminal defendant as to any fact.
See
