Opinion
I. Introduction
We confront in this case the interplay of two otherwise unrelated constitutional concerns: the prohibition against being twice put in jeopardy and the right of a criminal defendant to be mentally as well as physically present at *62 trial. In deciding whether real party in interest John Marks 1 may invoke the protections of the double jeopardy clause, we first consider whether a trial court suffers a fundamental loss of jurisdiction when it subjects a defendant to trial without first determining that he has the requisite capacity to understand, consult, and assist in the defense of his life or liberty. (Pen. Code, § 1368.) We resolve this threshold question in the negative and conclude the court retains jurisdiction over the subsequent, albeit defective, proceedings.
This determination does not end our inquiry, however. Because the failure to evaluate a defendant’s competence to stand trial mandates reversal, principles of double jeopardy may limit the scope of reprosecution. To assess the proper application of this constitutional guaranty in the present factual context, we also address whether a conviction of a lesser degree crime by operation of law (Pen. Code, § 1157) 2 should be accorded the same effect on retrial as an express finding of the lesser degree crime by the previous trier of fact. This question we answer in the affirmative.
II. Factual and Procedural Background
We are not unacquainted with the underlying factual and procedural history herein, portions of which we reviewed on automatic appeal.
3
(People
v.
Marks
(1988)
The matter returned to the trial court, where defendant was found competent. The prosecution reinstated all charges, including first degree murder, both special circumstance allegations, and all enhancement allegations, and *63 indicated its intention again to seek the death penalty. Defendant entered pleas of former acquittal and once in jeopardy (§ 1016), essentially contending that by operation of section 1157 the prosecution could not retry him on any offense greater than second degree murder. 4 The People responded that the trial court’s section 1368 error rendered it without jurisdiction exсept to hold a competency hearing and that all other proceedings were a nullity. Since jeopardy never attached, the proffered pleas were unavailable.
After a hearing on the matter, the trial court agreed with defendant and limited the prosecution to retrial for second degree murder. 5 The People petitioned for extraordinary relief; in a divided opinion, the Court of Appeal issued a peremptory writ of mandate directing the trial court to set aside its order precluding prosecution for first degree murder and to strike defendant’s pleas of former acquittal and once in jeopardy.
In reversing the trial court, the Court of Appeal majority accepted the People’s jurisdictional argument, obviating the need to consider defendant’s double jeopardy claims. In a lengthy explication, the dissent vigorously disagrеed, positing that the trial court did not proceed without jurisdiction but only in excess of jurisdiction because its failure to hold a competency hearing denied defendant his due process right to a fair trial. Since the trial proceedings were thus not void, double jeopardy might preclude retrial for first degree murder. The dissent declined, however, to reach this issue in light of countervailing policy considerations, concluding instead that due process required the same result to avoid penalizing defendant for exercising his right to appeal.
We granted defendant’s petition for review and stayed further proceedings.
III. Discussion
A. Trial Court Jurisdiction
The parties have framed the nature and scope of our threshold inquiry thusly: The People contend double jeopardy is not implicated because the trial court’s failure to observe the mandate of section 1368 divested it of fundamental, i.e., subject mattеr, jurisdiction. “Both the history of the Double Jeopardy Clause and its terms demonstrate that it does not come into play until a proceeding begins before a trier ‘having jurisdiction to try the
*64
question of guilt or innocence of the accused.’ [Citations.]”
(Serfass
v.
United States
(1975)
Defendant counters that principles of double jeopardy obtain because “[t]he jurisdictional concept involved ... is not lack of jurisdiction of the cause but excess of jurisdiction. [Citation.]”
(In re Griffin
(1967)
In arguing an absence of fundamental jurisdiction, the People rely substantially on our statement in
Marks I
that “once a trial court has ordered a competency hearing pursuant to section 1368, the court lacks jurisdiction to conduct further proceedings on the criminal charge or charges against the defendant until the court has determined whether he is competent.”
(Marks I, supra,
Despite their imperative tenor, however, none of the cited authorities squarely addressed a question of the trial court’s jurisdiction to proceed notwithstanding an erroneous failure to hold a competency hearing. The principal consideration was invariably limited to the effect of section 1368 error on the underlying judgment of conviction; subsequent to
Pennington, supra,
As explained below, we conclude that the failure to comрly with the mandate of section 1368 does not effect a fundamental loss of jurisdiction, i.e., “an entire absence of power to hear or determine the case, an absence of authority over the subject matter or the parties. [Citation.]”
(Abelleira
v.
District Court of Appeal
(1941)
Our analysis begins with the statutory language, from which we educe no legislative directive or intent to oust the trial court of subject matter jurisdiction pending an evaluation of the defendant’s competence. In pertinent part, section 1368, subdivision (c), provides that when the court has expressed a dоubt as to the defendant’s capacity to stand trial and has ordered a hearing thereon, “all proceedings in the criminal prosecution shall be suspended until the question of the present mental competence of the defendant has been determined.” Among other definitions, “to suspend” means “to cause (as an action, process, practice, use) to cease for a time ...[;] stay [as a hearing] . . . .” (Webster’s New Internal. Dict. (3d ed. 1981) p. 2303.) The code provision itself is thus not cast in jurisdictional terms. Nor does the statutory scheme invite or accommodate judicial imposition of such a limitation. For example, in contrast to subdivision (c), subdivision (b) of section 1368 explicitly vests exclusive authority in the superior court to conduct the competency hearing; a municipal court may not do so even when the defendant is charged with a misdemeanor.
9
(In re Shaw
(1953)
Subsequent legislation buttresses this conclusion. Added in 1974, section 1368.1 now permits the trial court to consider several types of preliminary legal matters, including demurrers, suppression motions, and motions to dismiss for lack of reasonable cause, “capable of fair determination without the personal participation of the defendant” and notwithstanding the pendency of a competency hearing. (See
People
v.
Superior Court (Hulbert)
(1977)
Nor is there any constitutional imperative for imposing a jurisdictional limitation in this circumstance. In
Jackson
v.
Indiana, supra,
Having identified no statutory or constitutional imperative, we turn to the seemingly entrenched judicial gloss on which the People premise their jurisdictional argument. The precise passage spawning all subsequent references appears in
Pennington, supra,
Closer analysis of
Pennington
discloses no support for a departure from this settled law. In that case, we reexamined our statutory scheme in light of the then recent decision of
Pate
v.
Robinson, supra,
Thus informed of its constitutional mandate, this court held, “The decision of the United States Supreme Court in Pate v. Robinson demonstrates that *69 the type of ‘hearing’ which due рrocess requires when the accused has come forward with substantial evidence of present insanity has not been accorded the accused when the judge merely takes evidence to guide him in determining if he should declare the existence of a ‘doubt’ [as to this question].” (Pennington, supra, 66 Cal.2d at pp. 520-521.) Rather, the court must observe the express terms of section 1368, suspend further criminal proceedings, and take evidence ‘to the end of determining an issue of fact and [making] a decision on the basis of that evidence. [Citation.]” (Id., at p. 521.) Accordingly, we overruled prior decisions leaving such further inquiry to the trial court’s discretion even “when defendant has come forward with substantial evidence of present mental incompetence . . . .” (Id., at pp. 518-519.)
The holding in
Pennington, supra,
The principle underlying both the statutory scheme and the constitutional mandate is of ancient derivation and deeply rooted in our sense of basic fairness: “ ‘ “[T]here may be circumstances lying in his private knowledge, which would prove his innocency, of which he can hаve no advantage, because not known to the persons who shall take upon them his defence.” ’ ”
(People
v.
Perry
(1939)
It is in this context that
Pennington, supra,
Given this historical and legal perspective, we discern no reasoned basis for finding that trial error, even of this magnitude, implicates jurisdiction in any fundamental sense.
10
“Where a . . . court has power ... to proceed on the merits, that is jurisdiction of the proceedings.”
(United States
v.
Williams
(1951)
B. Double Jeopardy
As we anticipated in
People
v.
McDonald, supra,
the proper analytical relationship between section 1157 and principles of double jeopardy “is not immediately obvious” (
“The fundamental nature of the guarantee against double jeopardy can hardly be doubted. Its origins can be traced to Greek and Roman times, and it became established in the common law of England long before this Nation’s independence.”
(Benton
v.
Maryland, supra,
The scope of any reprosecution may, nevertheless, be restricted. Principally, double jeopardy “prohibits retrial after a conviction has been reversed because of insufficiency of the evidence. [Citations.]”
(United States
v.
DiFrancesco, supra,
As we indicated in
Marks I,
contrary to the statutory mandate, the jury failed to specify whether it found defendant guilty of first or second degree
*73
murder.
(Marks I, supra,
The law constrains reviewing courts as well as trial courts in this regard.
(People
v.
Lamb
(1986)
Defendant urges that by operation of section 1157 the law implicitly absоlved him of first degree murder, thereby precluding his reprosecution for that offense as a “former acquittal.” (See
Green
v.
United States, supra,
For purposes of delimiting the scope of retrial after a successful appeal, however, such a finding is generally contingent upon an implied or express determination that the evidence failed to sustain the prosecution’s case.
16
By contrast, section 1157 renders a conviction of the lesser degree by operation of law and does not establish or necessarily imply an insufficiency of the evidence to convict of the grеater degree.
17
Indeed, on occasion “form triumphs over substance, and the law is traduced”
(People
v.
Johns
(1983)
In any event, we need not decide the former acquittal issue. The overriding fact remains that in fixing a defendant’s conviction at the lesser degree, section 1157 conclusively resolves the question of his guilt for the greater degree crime in his favor after trial for that offense. In this circumstance, controlling United States Supreme Court precedents compel we accommodate a plea of “once in jeopardy.” 18 (§ 1016.)
In the seminal case of
Green
v.
United States, supra,
The Supreme Court reversed, relying on both a finding of an implied acquittal and the broader principle of once in jeopardy.
(Price
v.
Georgia, supra,
We discern no constitutionally sustainable logic or rationale by which to distinguish the present case. To suggest defendant was not “in direct peril of being convicted and punished for first degree murder at his first trial” or that he was not “forced to run the gantlet once on that charge”
(Green
v.
United
*76
States, supra,
The fact the trial court committed reversible error at the outset of the proceedings and defendant successfully appealed his conviction on that ground assumes no analytical significance in this context. When a defendant has once endured the rigors of trial and the jury fails to convict despite a full opportunity to do so, he may not be required to face that ordeal again regardless of any collateral defects in the original proceeding.
(Benton
v.
Maryland, supra,
395 U.S. at pp. 796-797 [
*77
We perceive no unfairness to the People in our holding. The prosecution is not deprived of its “one complete opportunity to convict those who have violated [the] laws.”
(Arizona
v.
Washington
(1978)
The United States Supreme Court has repeatedly counseled against subjecting a defendant to further proceedings to allow the prosecution the opportunity to ameliorate trial deficiencies, evidentiary or procedural, that could have been otherwise timely corrected. (See
Swisher
v.
Brady
(1978)
Moreover, allowing reprosecution for the greater degree offense would essentially afford the People otherwise unavailable recourse from the mandatory and conclusive operation of section 1157. This result would not only circumvent and contravene the statutory imperative, it would undermine the constitutional impetus favoring finality of judgments. “It has been said that ‘a’ or ‘the’ ‘primary purpose’ of the [double jeopardy clause] was ‘to preserve the finality of judgments,’ [citation] . . . .”
(United States
v.
DiFrancesco, supra,
Accordingly, guided by the weight of precedent and the substantial policy considerations they reflect, we hold that when a defendant’s conviction is “deemed to be of the lesser degree” by operation of section 1157, it “is to be accorded constitutional finality and conclusiveness similar to that which attaches to a jury’s verdict of acquittal.”
(United States
v.
DiFrancesco, supra,
IV. Conclusion
As its ancient lineage attests, the double jeopardy clause is no mere “technicality”; it is an integral part of “the framework of procedural protections which the Constitution establishes for the conduct of a criminal trial.”
*79
(United States
v.
Jorn, supra,
Consistent with this tradition, we continue to eschew a parsing attitude unworthy of this “fundamental ideal in our constitutional heritage . . . .”
(Benton
v.
Maryland, supra,
The double jeopardy clause suffers no compromise; therein lies its strength and vitality. The extent of our inquiry ends with its proper application: “Whether guilty or innocent of the offense with which he [is charged, the defendant is] entitled to have his case fairly tried according to the established rules of law. As was said by a learned judge, ‘Though unfair means may happen to result in doing justice to the prisoner in the particular case, yet justice so attained is unjust and dangerous to the whole community.’ (H
urd
v.
State,
V. Disposition
The judgment of the Court of Appeal is reversed with directions to deny the People’s petition for writ of mandate.
*80 Lucas, C. J., Mfosk, J., Panelli, J., Kennard, J., Baxter, J., and George, J„ concurred.
Notes
Real party in interest Marks is the defendant in the underlying criminal proceeding. For clarity, we refer to him throughout the opinion as defendant.
A11 further statutory references are to the Penal Code.
A jury found defendant guilty of murder (§ 187) and conspiracy to commit murder (§§ 182/187). It fоund true a financial-gain special-circumstance allegation (§ 190.2, subd. (a)(1)), but not true allegations of a lying-in-wait special circumstance (§ 190.2, subd. (a)(15)) and personal use of a firearm (§§ 12022.5, 1203.06, subd. (a)(1)). The jury imposed a verdict of death.
As in the original information, defendant was charged with conspiracy to commit first degree murder, and he responded with similar pleas to this count as well. For convenience, reference to the conspiracy count is omitted from the discussion since, for analytical purposes, it is subsumed within the murder charge.
The court struck the special circumstance allegations as “surplusage.”
PreIiminarily, the People contend these statements are dispositive because they constitute the law of the case. “The doctrine of the law of the case is this: That where, upon an appeal,
*65
the supreme court, in deciding the appeal, states in its opinion a principle or rule of law necessary to the decision, that principle or rule becomes the law of the case and must be adhered to throughout its subsequent progress, both in the lower court and upon subsequent appeal, . . . this although in its subsequent consideration this court may be clearly of the opinion that the former decision is erroneous in that particular. [Citations.]”
(Tally
v.
Ganahl
(1907)
To state the doctrine is to demonstrate its present inapplicability: Apart from concluding the trial court committed reversible error, no other determination of law was “necessary to the decision” in
Marks I.
In particular, we did not resolve the question of jurisdiction because the facts did not warrant any such discussion at that time. As we explained in
People
v.
McDonald
(1984)
The Court of Appeal inferred from our omission in
Marks I
to ascribe “any postreversal significance” to the jury’s failure to designate the degree of murder pursuant to section 1157 that we had sub silentio resolved the jurisdictional issue in favor of the People. On the contrary, as in
People
v.
McDonald, supra,
One exception is
People
v.
Laudermilk
(1967)
The People contend only that the trial court suffered a loss of subject matter jurisdiction, not authority over defendant’s person. Accordingly, we confine our consideration to this jurisdictional component.
On the other hand, the municipal court does retain subject matter jurisdiction over the criminal proceedings even during the pendency of the competency heаring. (See § 1368.1, subd. (d).)
See, e.g.,
In re Sands
(1977)
As our prior decisions unequivocally attest, the naked power conferred by subject matter jurisdiction cannot sanction a violation of rights. In concluding that the trial court retains fundamental authority over the cause, in no respect do we endorse, condone, or excuse a failure to comply with the express mandate of section 1368.
Section 1157 provides: “Whenever a defendant is convicted of a crime or attempt to commit a crime which is distinguished into degrees, the jury, or the court if a jury trial is wаived, must find the degree of the crime or attempted crime of which he is guilty. Upon the failure of the jury or the court to so determine, the degree of the crime or attempted crime of which the defendant is guilty, shall be deemed to be of the lesser degree.”
Throughout most of this discussion, we are principally concerned with the operation and effect of the second sentence by which a crime is deemed of the lesser degree. Although we may make reference to defendant’s conviction for puiposes of illustration, section 1157 is a statute of general application, and our analysis and conclusions are not reserved for murder or capital offenses.
The double jeopardy clause of the Fifth Amendment to the United States Constitution declares, “nor shall any person be subject for the same offense to be twice put in jeopardy of life or limb.” The federal guaranty is applicable to the states through the Fourteenth Amendment.
(Benton
v.
Maryland, supra,
We must determine this question even though defendant obtained a reversal of his conviction on appeal. “[A]ny error affecting the express verdict of guilty does not affect the conclusiveness of the implied verdict of acquittal. [Citations.]”
(In re Hess, supra,
As we explain below, our state law requires and directs regularity in the jury’s verdict. (§ 1157.) The operation of section 1157 thus determines what, if any, favorable results accrued under defendant’s conviction. To say defendant may be retried because he upset the judgment on appeal begs the question; the constitutionally permissible scope of any retrial depends upon an accurate denomination of that conviction. (Cf.
People
v.
Travers
(1887)
Noting the rigid and “formalistic” manner in which courts must apply the statute, Justice Arguelles in
People
v.
Bonillas
(1989)
See, e.g.,
Smalis
v.
Pennsylvania
(1986)
Nevertheless, a defendant’s conviction is not “reduced” by operation of law since section 1157 becomes operative only in the absence of an express jury finding on the degree of the crime. (Cf. § 1181 [on motion for new trial, court may modify to lesser degree offense verdict that is contrary to law or evidence].) For example, in this case the original trial court, Judge Eric Younger, entered an erroneous judgment on the assumption the jury had rendered a verdict of first degree murder, apparently because of the special circumstance finding.
(People
v.
McDonald, supra,
For the same reason, we need not determine whether section 1157 could be construed as a directed verdict, which for double jeopardy purposes operates in the same manner and to the same extent as an implied acquittal.
(United States
v.
Martin Linen Supply Co., supra,
This conclusion also avoids the potential for impairing the due process right of appeal. (See
North Carolina
v.
Pearce
(1969)
We decline the People’s invitation to distinguish the fact that in this case defendant’s capital conviction statutorily compelled review. (§ 1239, subd. (b).) We resolve the issues before us for all defendants who, irrespective of the nature of their offense, may premise a plea of once in jeopardy upon the operation of section 1157. Moreover, it would be anomalous if not unconscionable to formulate a less favorable rule for those under judgment of death, thereby implicating equal protection as well as due process.
The defendant has no obligation to bring the omission to the court’s attention. As we have stated in a related context, “When a trial court proposes to discharge a jury without legal necessity therefor, the defendant is under no duty to object in order to claim the protection of the constitutional guarantee [against double jeopardy], and his mere silence in the face of an ensuing discharge cannot be deemed a waiver. [Citations.]”
(Curry
v.
Superior Court
(1970)
See, ante, footnote 15.
Defendant sought to interpose double jeopardy objections to his reprosecution not only on the substantive charges, but also for the lying-in-wait special-circumstance allegation and the personal use of a firearm allegation, both of which the jury originally found not true. (See,
ante,
fn. 3.) In light of our conclusions, we need not consider this contention with respect to the lying-in-wait special circumstance. As to the personal use of a firearm allegation, defendant’s point is well taken: The jury’s rejection constituted an express acquittal on the enhancement and forecloses any retrial.
(People
v.
Pettaway
(1988)
