Former Prosecution for a Different Offense

Former Prosecution for a Different Offense

Section 1.08 protects a defendant only when the second prosecution rests on the same statutory provision and the same facts. That limit leaves a gap, because criminal codes overlap and a single course of events can usually be described by more than one statute. A prosecutor who fails to win under the robbery provision could try again under the theft provision, and one who wins on a narrow charge could return later with a broader one built on the same events. Section 1.09 closes the gap by barring a prosecution even though it is under a different provision or rests on different facts, whenever one of the listed circumstances is present.¹ The section is the Code's answer to a different label on the same story.

Every route in § 1.09(1) starts from the same threshold. The former prosecution must have resulted in an acquittal or in a conviction as defined in § 1.08, which brings in the two definitions studied above.² Because that opening line names only those two outcomes, a prosecution that ended in a final order for the defendant under § 1.08(2), or in an improper termination, does not satisfy it. Once the threshold is met, the later prosecution is barred if it is for an offense of which the defendant could have been convicted in the first prosecution, for an offense for which the defendant should have been tried in the first prosecution under the joinder rule of § 1.07, or for an offense based on the same conduct, subject to two exceptions.³ Each of the three routes asks a different question about the same later charge, so a fact pattern may satisfy one route and fail the others.

Two further bars sit outside that threshold. Section 1.09(2) carries issue preclusion across different offenses, and § 1.09(3) addresses improper termination, which a later part of this chapter teaches together with its § 1.08 counterpart.⁴ The three routes of § 1.09(1) come first, in the order the Code lists them, beginning with the offenses that were available at the first trial.

Offenses Available at First Trial

Route (a) bars a later prosecution for any offense of which the defendant could have been convicted on the first prosecution.⁵ How far the route reaches depends on what the first factfinder had before it. A prosecution for a charged offense puts to the factfinder not only that offense but also every offense the same proof could establish, chiefly the lesser offenses included in the charged one. As the earlier treatment of multiple convictions showed, an included offense is one whose elements are a subset of the charged offense's elements, so proof of the greater necessarily proves the lesser. A defendant who is acquitted or convicted of the greater offense has therefore already stood before a jury that was free to return a verdict on the lesser one.

The reason follows from who controls the charge. The State chooses what to charge and how much of its case to present, and a lesser offense available to the jury costs the State nothing to include in that first trial. If a conviction of the greater offense could be followed by a prosecution for the lesser, the defendant would face punishment twice for elements the first verdict already covered. If an acquittal of the greater offense could be followed by a prosecution for the lesser, the State could use the first trial as a rehearsal, learning which evidence persuaded the jury before trying again on a lighter charge. Route (a) removes both temptations by making the first trial the one occasion on which the State must bring everything the verdict could cover.

This route also completes the acquittal rule studied above. Under § 1.08(1), a finding of guilty of a lesser included offense operates as an acquittal of the greater inclusive offense.⁶ Route (a) runs the other way, deciding what becomes of the lesser offense after the greater one has been tried to an acquittal or a conviction, so that the included-offense relationship is closed from both directions.

The fact that moved the answer is whether the second offense sat on the menu of verdicts available at the first trial. Theft did, because the robbery charge necessarily required the facts of theft, and the firearm possession did not. The trap is reading route (a) as limited to the offense the State actually charged. The route reaches every offense the first verdict could have covered, and it leaves offenses outside that menu to the joinder and same-conduct routes taught next.

Offenses That Should Have Been Joined

Route (b) is the enforcement arm of compulsory joinder. Section 1.07, taught earlier, requires that offenses based on the same conduct or arising from the same criminal episode be prosecuted together when the appropriate prosecuting officer knows of them when the first trial begins and they fall within the jurisdiction of a single court. Route (b) attaches the sanction: after an acquittal or a conviction, a later prosecution is barred for any offense for which the defendant should have been tried on the first prosecution under § 1.07, unless the court ordered a separate trial of that offense.¹⁰ The word should matters, because the route reaches offenses the State was obliged to join and not merely those it was able to join.

The sanction is needed because the State alone decides which offenses appear in the charging document. A duty to join that cost the State nothing when ignored would invite it to try one offense, study the defense, learn which evidence persuaded the factfinder, and then try a second offense with the benefit of that knowledge. A forfeiture at the end of the first prosecution removes that advantage and gives the State a reason to assemble the whole case at once. The exception for a court-ordered separate trial fits the same logic. When a judge, satisfied that justice requires it, splits the charges under § 1.07(3), the separation is the court's decision rather than the State's tactic, and a forfeiture would punish the State for something it did not choose.

The decision in State v. Aiu shows how the question of what should have been tried together is answered by asking what a single court could have heard. The defendant there faced misdemeanor and felony charges, and misdemeanors are normally tried in the district court. The Hawaii Supreme Court nonetheless observed that the circuit court had jurisdiction over every offense cognizable under state law and that the procedural rules permitted joinder, so at the time of the misdemeanor prosecution all three offenses could have been tried together in the circuit court.¹¹ The court read the Hawaii provisions consistently with the structural scheme of the Model Penal Code, which is why decisions from adopting states can help in understanding the Code's own routes.¹²

The fact that moved the answer is the prosecutor's knowledge at the start of the first trial, since everything else in the pair stayed the same. A second point deserves attention in the first scene. Assault and criminal mischief protect different interests, so the exception for different harms taught below may keep the same-conduct route from applying, yet route (b) still bars the prosecution. The exceptions are written into route (c) alone, which makes route (b) independent of route (c), and an exam answer that clears the State under route (c) has not finished the analysis.

Same Conduct Rule

Route (c) is the catch-all. After an acquittal or a conviction, a prosecution for an offense based on the same conduct is barred unless one of two exceptions applies: either each offense requires proof of a fact the other does not and the laws defining them are intended to prevent a substantially different harm or evil, or the second offense was not consummated when the former trial began.¹⁶ Unlike routes (a) and (b), this one does not ask whether the first jury could have convicted of the second offense or whether the prosecutor was obliged to join it. It asks only whether the second prosecution rests on the conduct the first one covered.

The route is broad on purpose. The State, and not the defendant, picks the statutory label for a course of conduct, and overlapping provisions give it many labels to choose from. A bar tied to the label would protect no one, because the State could always find another label. Tying the bar to the conduct, which is what the defendant did and what the first trial examined, blocks relabeling. The breadth also explains why exceptions exist: without them route (c) would forbid prosecuting a defendant whose single act violated two statutes protecting distinct interests, or whose conduct matured into a worse offense after the first trial began.

Routes (b) and (c) overlap without matching. Route (b) reaches the same conduct or the same episode, which can cover several separate acts, but it depends on the prosecutor's knowledge and on a single court's jurisdiction. Route (c) reaches only the same conduct, but it depends on neither condition. A failed route therefore does not end the analysis, and each of the three must be run.

Different Facts and Different Harms

The first exception to the same-conduct bar has two parts. The offense of which the defendant was formerly convicted or acquitted and the offense now prosecuted must each require proof of a fact the other does not, and the law defining each must be intended to prevent a substantially different harm or evil.²⁰ The exception applies only when both parts are met, so a failure on either leaves the bar in place. The fact test is also two-directional: the word each means that the second offense must have an element the first lacks, and the first must have an element the second lacks.

Each part answers a different problem. The fact test compares what the State must prove under each statute. If the second offense requires nothing the first did not, the State is trying the same proof again under another name. If the first offense requires nothing the second does not, the first is a lesser version of the second, and the State could have brought the larger charge the first time. The harm test does subtler work, because elements are easy to manufacture. A legislature or a prosecutor can usually find some extra detail, such as a place or a form of document, that distinguishes two near-identical offenses. Asking what each law is meant to protect screens out differences of detail, since two statutes aimed at the same danger put the defendant in the same position as one statute punished twice. When the statutes protect different interests, the second prosecution serves an interest the first did not.

The three scenes isolate the two parts. The brick case satisfies both, the speed case satisfies the fact test but fails the harm test, and the theft-then-robbery case fails the fact test outright. The trap is treating a difference in elements as enough, because the exception requires both conditions and a comparison of elements settles only one of them.

Adopting states vary the wording, which makes the enacted text the thing to read. The Hawaii counterpart asks whether the offense now prosecuted requires proof of a fact not required by the former offense, a one-way inquiry, and then asks whether the law defining each offense is intended to prevent a substantially different harm or evil.²⁴ On facts like the theft-then-robbery sequence, that difference could change the answer on the fact prong, so the jurisdiction's own language controls.

Offense Not Yet Consummated

The second exception removes the same-conduct bar when the second offense was not consummated when the former trial began.²⁶ An offense is consummated when every element has occurred, including any required result such as a death. The classic illustration is an assault followed by the victim's death, where the homicide offense comes into existence only when the victim dies.

The exception has two parts, and each has its own reason. The first is the exception itself. An offense that has not been completed cannot be charged, so the first prosecution could not have covered it, and the defendant's acquittal or conviction answered only for what had happened by then. A bar in that situation would turn a conviction for a wounding into immunity for a killing that did not yet exist. The second part is the measuring point. Because the text looks to the moment the former trial began, the State has a clear cutoff for its charging decisions: whatever was consummated by then belongs in the first trial or is lost, and whatever was not yet consummated sits outside it. The State cannot be expected to add a charge mid-trial for an offense that had not occurred when it framed the case.

The moved fact is the date of death relative to the start of the first trial. A death after the trial begins but before the verdict still qualifies, because the text fixes the moment at the opening of the trial and ignores later developments. Students most often err by measuring from the verdict or from the date of the second charge, so the phrase to hold is when the former trial began.

Inconsistent Determinations

Section 1.09(2) is a separate bar that works through what the first prosecution decided. It applies when the former prosecution was terminated, after the information was filed or the indictment found, by an acquittal or by a final order or judgment for the defendant, when that outcome has not been set aside, reversed, or vacated, and when it necessarily required a determination inconsistent with a fact that must be established for conviction of the second offense.³⁰ The provision parallels § 1.08(2), which the section above taught for the same provision, with two differences in wording. Section 1.09(2) names acquittals expressly, and it speaks only of a fact, where § 1.08(2) reaches a fact or a legal proposition.

The text asks no question about whether the second offense rests on the same conduct. The two prosecutions may involve different acts on different days, so long as the second offense requires a fact the first outcome necessarily decided otherwise. The rule's reason is issue preclusion: when a factfinder has refused to find a fact the State needed, a second prosecution that requires the same fact invites a second factfinder to find what the first would not. The word necessarily keeps the rule honest, because a general verdict of not guilty can rest on several grounds, and the State cannot be held to have lost a particular fact unless the outcome could not have been reached without deciding it. The limit to facts has its own logic, since a ruling that one statute does not reach the conduct says little about whether a different statute does.

Adopting states may vary the wording here as well. The Hawaii counterpart tracks the same inconsistent-determination language but omits the Code's requirement that the termination come after the charging instrument, so the local text again decides how the timing condition operates.³¹

The two scenes share every fact except the issue the first trial turned on. This is why no overlap in conduct is needed and why the record of the first trial matters so much: the bar follows the fact that was decided against the State and not the label of either charge.

Offenses Available at First Trial

This route asks a question about the first trial itself: which verdicts could the factfinder have returned there? Section 1.09(1) sets the threshold, requiring that the former prosecution have resulted in an acquittal or in a conviction as defined in § 1.08 before any of its listed bars can operate.³⁵ Subsection (1)(a) then names the first bar, which reaches any offense of which the defendant could have been convicted on the first prosecution.³⁶ That wording ties directly to the included-offense idea from § 1.07(1)(a). A jury trying a charged offense may return a verdict on any offense the charge includes, so every included offense was available at the first trial. The acquittal-of-the-greater rule in § 1.08(1) rests on the same unit: the charged offense and the offenses it includes are decided together in one proceeding.

The reason for the bar follows from what the first trial could already decide. An offense on which the first jury could have convicted was in issue at that trial, and prosecuting it again would split one body of proof across two proceedings and give the State a second try at a question the first trial could have answered. The incentive problem is sharper. Without the bar, a prosecutor could try the heaviest charge first, learn from an acquittal where the evidence fell short, and return with a lesser charge built on the same proof, using the first trial as a rehearsal. Because the State controls what it charges, the bar requires it to put the whole case, including its fallback verdicts, before the first factfinder.

The words that do the work are could have been convicted. The text asks what verdicts were legally available at the first trial, not what the jury actually weighed, so the prosecutor's failure to mention theft does not reopen the door. The same words mark the edge of the route. An offense with its own facts, such as the earlier burglary, was never available at the robbery trial, and a later charge for it is tested under the other routes. Direction matters as well. If the first prosecution was for the lesser offense alone, the greater was not available at that trial, so a later charge for the greater is tested under the same-conduct route taught above, which ordinarily bars it when the lesser offense requires no fact that the greater lacks.

Offenses That Should Have Been Joined

The joinder duty in § 1.07 would be advice without a consequence, and route (b) of § 1.09(1) supplies the consequence. A later prosecution is barred for any offense for which the defendant should have been tried on the first prosecution under § 1.07, unless the court ordered a separate trial of the charge of that offense.⁴⁰ Like each route in § 1.09(1), this one operates only after the first prosecution has ended in an acquittal or in a conviction as defined in § 1.08.⁴¹ The phrase should have been tried looks back to § 1.07(2), which forbids separate trials for multiple offenses based on the same conduct or arising from the same criminal episode when the offenses are known to the appropriate prosecuting officer at the time the first trial commences and are within the jurisdiction of a single court.⁴² Whatever that duty required the State to bring together, route (b) forbids the State to bring later.

Three provisions therefore work as one mechanism. Section 1.07(2) imposes the duty to try related offenses together. Section 1.07(3) supplies the release valve: on application of the prosecutor or the defendant, the court may order a charge tried separately if it is satisfied that justice so requires.⁴³ Section 1.09(1)(b) attaches the penalty, and its own exception, a court order for a separate trial, mirrors the valve exactly. The Hawaii counterpart is built the same way, barring any offense that should have been tried on the first prosecution under its joinder section unless the court ordered a separate trial of the offense.⁴⁴ Route (b) also differs from route (a) in what it measures. Route (a) looks at the verdicts the first factfinder could have returned on the charge actually brought, while route (b) reaches separate offenses the State could have added to the first prosecution. The bar is best analyzed in the order the provisions work: duty, release valve, sanction.

The bar exists because a duty without a penalty gives the State no reason to follow it. The penalty falls on the State rather than on the court or the defendant, since the State alone decides which offenses to charge and when, and so the State alone can cure the problem by charging everything at once. The incentive the bar removes is the temptation to hold a charge in reserve. A prosecutor who is dissatisfied with the sentence from one trial, or who failed to win a conviction, could otherwise bring a known charge from the same episode in a second proceeding and use the first trial as a rehearsal. The Hawaii court construing its counterpart described the joinder policy in these terms, as protection against harassment by successive prosecutions when the State is dissatisfied with the punishment ordered or has previously failed to convict.⁴⁵ Joinder also saves both sides money, because charges from one episode tend to share witnesses and evidence that a second trial would present all over again.⁴⁶

The exception for a separate trial puts the decision to postpone a charge in the judge's hands. The text turns on whether the court ordered separation, and it makes no difference whether the prosecutor or the defendant made the application.⁴⁷ A prosecutor who wants to hold a charge for later must therefore ask before the first trial and obtain an order. If the prosecutor could simply decide to sever, the exception would swallow the rule, and the State's reasons for holding back would never be tested. A judge weighing an application can see whether joinder would confuse the jury or prejudice the defendant, and a charge sent to a separate trial has been postponed with judicial approval and not by the State's tactical choice.

The other two conditions of the duty carry over into the bar, because an offense the State was never obliged to join is not one it should have tried. The knowledge condition is measured when the first trial begins. If the appropriate prosecuting officer did not know of the offense at that moment, no duty to join arose, and the State cannot be faulted for omitting a charge it had no means to bring.⁴⁸ A homicide that follows an assault conviction because the victim died only after the first trial began usually escapes route (b) for this reason, since an offense that had not yet occurred could not have been known. The single-court condition asks whether one court had jurisdiction to try the offenses together. In State v. Aiu the Hawaii Supreme Court treated misdemeanor and felony charges as triable together in the circuit court, even though misdemeanors are normally tried in the district court, because a statute gave the circuit courts jurisdiction over all offenses cognizable under state law and the procedural rules allowed misdemeanors to be joined with felonies.⁴⁹ The reasoning shows that the condition turns on whether a joint trial was legally available, and not on which court customarily hears each charge. A State cannot avoid the duty by pointing to a customary division of labor between courts, but it also cannot be required to combine charges that no single court could have heard.

The three scenes keep the offenses constant and move one fact at a time. A court order or the prosecutor's ignorance dismantles the duty to join, and with it the bar. The remaining question is how route (b) relates to the same-conduct route taught above, because the two can point in different directions on the same facts.

Route (c) fails to bar the mischief charge, yet route (b) does, because the exceptions for different facts and harms and for offenses not yet consummated are written into route (c) alone. The Hawaii counterpart repeats that layout, placing its two exceptions under its same-conduct paragraph and leaving its joinder paragraph with only the separate-trial exception.⁵⁴ The two routes ask different questions. Route (c) asks whether the offenses differ enough in what they require and what they protect to justify a second prosecution after a judgment. Route (b) asks whether the State had the chance to try everything in one proceeding. Different interests protected by two statutes may justify separate convictions, but they supply no reason for two trials when one court could have heard both and the State knew of both. Students most often carry the route (c) exceptions over to route (b), and the only exception written into route (b) is a separate trial ordered by the court.

Same Conduct Rule

Routes (a) and (b) of § 1.09(1) each look back at the first prosecution, one asking which verdicts the first factfinder could have returned and the other asking which offenses the State should have joined. Route (c) looks instead at what the defendant did. Once the first prosecution has ended in an acquittal or in a conviction as defined in § 1.08, a later prosecution is barred if it is for an offense based on the same conduct, unless one of two exceptions applies.⁵⁶ The threshold carries over from the other routes. A first prosecution that ended without an acquittal or a conviction in the § 1.08 sense does not open route (c), and this chapter treats those endings separately under improper termination.

The reason for keying the bar to conduct appears from the traditional test it displaces. Under that test a plea of former acquittal succeeded only when the offense in the second indictment was the same in law and in fact as the first, so that an acquittal on the first virtually included an acquittal on the second.⁵⁷ Murder and manslaughter satisfied the test, because an acquittal of either carried an acquittal of the other. Offenses outside that relationship did not, and Commonwealth v. Roby put the consequence directly: the plea fails when the offenses are "perfectly distinct in point of law, however nearly they may be connected in fact."⁵⁸ In State v. Sias a defendant acquitted of larceny was charged with obtaining the same property by conspiracy, and the State admitted that the facts to be proved were precisely the same. The court allowed the second prosecution, because the defendant could not have been convicted of conspiracy on the larceny indictment and could not be convicted of larceny on the conspiracy indictment.⁵⁹ State v. Standifer reached a similar result for defendants acquitted of murdering Levi Lowry and then charged with assault and battery of John Lowry in the same affray, reasoning that one person may commit two or more distinct crimes in a single transaction and that the first jury could not lawfully have returned a verdict on the assault.⁶⁰

Each of those outcomes shows the incentive problem that route (c) answers. Legislatures define overlapping offenses, and the State decides which of them to charge. If the bar depended only on the offense label, an acquittal or a conviction would protect a defendant from nothing beyond the specific statute used, and the State could return with another statute that the same conduct violates and put the same proof before a second factfinder. The first trial would then function as a rehearsal, and the defendant would bear the burden of defending one course of conduct twice. Looking to the conduct removes that opportunity, because changing the statutory label no longer changes what the State is trying to prove.

The same wording explains why route (c) reaches cases that routes (a) and (b) miss. Route (a) needs an offense on which the first jury could have returned a verdict. Route (b) needs a duty to join, which depends on the prosecutor's knowledge when the first trial began and on a single court's jurisdiction over both offenses. The clause in (c) speaks only of an offense based on the same conduct and then moves directly to its exceptions.⁶¹ An offense outside both earlier routes can therefore still be barred when it rests on conduct the first prosecution already addressed. Conduct is the operative word, and the joinder duty of § 1.07 also reaches a criminal episode, so a shared setting such as a single brawl does not by itself make two separate acts the same conduct.

A bar this broad would overreach if the clause stopped there, so two exceptions follow it. Each answers a specific way in which a same-conduct bar could shield a defendant from a wrong the first prosecution never addressed. The first applies when each offense requires proof of a fact the other does not and the laws defining them are intended to prevent a substantially different harm or evil. Both conditions must be met, and the next subsection takes up what each requires. The second applies when the second offense was not consummated when the former trial began, since the State could not have prosecuted at that trial an offense that had not yet been completed, and the subsection after that develops it.⁶⁵ Together the exceptions keep the bar from protecting a defendant against distinct wrongs that merely share some facts.

Students most often go wrong by comparing the statutes first and concluding that a different statute avoids the bar. The comparison of elements does appear in route (c), but only as the first exception, and an exception can displace a bar only after the conduct inquiry has established that the bar attaches.

Different Facts and Different Harms

The same-conduct bar would sweep too broadly if it shielded a defendant from every later charge that touches the same acts, and the first exception exists to narrow it. Under § 1.09(1)(c)(i), the bar does not apply when the offense of which the defendant was formerly convicted or acquitted and the offense now charged each require proof of a fact the other does not, and the law defining each offense is intended to prevent a substantially different harm or evil.⁶⁷ The text joins two conditions, one about proof and one about purpose, and the State may go forward under this exception only when both are satisfied. If either condition fails, the exception drops away and the same-conduct bar applies in full. Each condition has its own job, so the next two paragraphs take them one at a time.

The proof condition looks in both directions. The earlier offense must require some fact that the later offense lacks, and the later offense must require some fact that the earlier one lacks. That two-way comparison is why an included offense never qualifies: a lesser offense is built from elements that the greater offense also contains, so the lesser requires nothing the greater does not, and the condition fails as soon as the comparison is run backward. The condition fits offenses that overlap on the facts while each demands something distinct of its own, such as impairment in one and injury in the other. In that situation the second trial would put before the factfinder proof that the first trial never required.

The purpose condition does the subtler work. A difference in proof is cheap to produce, because a drafter can add a single element to a statute that guards the same interest and label the result a new offense. A prosecutor holding several such statutes could then try one wrong repeatedly, changing only the extra element each time. Asking what harm or evil each law is intended to prevent closes that route, since adding an element does not change the interest the statute protects. Only when the offenses differ in the proof they require and also protect different interests does the State have a legitimate claim to a second prosecution.⁶⁸

The two scenes share the same first conviction and the same drive, and only the second charge changes. What moves the answer is the interest each statute protects. The over-limit charge differs from the first offense in its proof, yet it addresses the same danger, so the State has no new wrong to prosecute. The assault charge addresses an injury to a person that the intoxication conviction never reached.

Adopting states do not always copy the Model Code word for word. The Hawaii counterpart asks only whether the offense for which the defendant is subsequently prosecuted requires proof of a fact not required by the former offense, and it then repeats the requirement of a substantially different harm or evil.⁷¹ That wording runs in one direction. Under it, a prosecution for a greater offense after conviction of a lesser one satisfies the proof condition, because the greater offense demands a fact the lesser does not. The Model Code's two-way comparison fails on the same pair, because the lesser offense requires nothing the greater lacks. The harm condition must still be met under either text, and other routes may bar the greater offense anyway, but the variation means the reader must check the direction of the comparison in the jurisdiction's own statute.

Two errors recur with this exception. The first is treating different elements alone as enough to defeat the bar, when the proof condition is only half of the exception and the over-limit scene shows an offense can pass it and still be barred because the harm condition fails. The second is treating the exception as the end of the analysis. It removes only the route (c) bar, and routes (a) and (b) remain to be tested on the same facts. In the pedestrian scene, if the prosecuting officer knew of the injury when the intoxication trial began and one court could have tried both charges, route (b) bars the assault charge even though route (c) does not, unless the court ordered a separate trial.⁷²

Offense Not Yet Consummated

The second exception to the same-conduct bar turns on timing. Under § 1.09(1)(c)(ii), the bar that attaches after an acquittal or a conviction does not apply when the second offense was not consummated when the former trial began.⁷⁴ An offense is consummated when every element of its definition, including any result the definition requires, has come into existence. The measuring point is the opening of the first trial, so completion by the time of the verdict or of the second prosecution makes no difference. An offense that did not yet exist at that moment may be prosecuted later, even though it rests on the same conduct that produced the first judgment.

The exception follows from what the same-conduct bar is meant to prevent. The bar denies the State a second try on conduct it has already put before a factfinder, and that denial presupposes that the State had a chance to put the whole matter before the first factfinder. When the offense had not yet happened, no such chance existed, because no trial that began earlier could have resolved a harm that had not yet occurred. Without the exception the State would face a dilemma whenever a victim's condition was uncertain. It could try the injury offense promptly and risk losing the later offense forever if the victim died, or it could hold the defendant under charge while waiting to learn the outcome, with the evidence aging in the meantime. The exception removes that dilemma, and the cost to the defendant is slight, because the later trial addresses a wrong the first trial never reached.

The standard illustration is a defendant convicted of assault whose victim dies after the first trial. The same conduct, the blows, supports both the assault conviction and a homicide charge, which is why the bar would otherwise attach. What differs is the result: death is the element that completes homicide, and it had not occurred when the assault trial began. The homicide was therefore not consummated at the relevant moment, and the State may prosecute it.⁷⁵

The exception asks whether the offense was complete, and its text says nothing about what the prosecutor knew. Knowledge matters elsewhere, since the joinder route turns on what the prosecuting officer knew when the first trial began, but this exception looks only to consummation.⁷⁸ A victim who died before the first trial, with the death unnoticed by the prosecutor, therefore leaves the homicide complete. If the first exception does not apply, route (c) can still bar a homicide charge on the same conduct even though the knowledge-dependent joinder route does not. The most frequent error is to treat an offense the State chose not to charge as one that was not yet consummated. A decision to try only the assault does not postpone the homicide, which was complete when the trial began, so the exception is unavailable.

Hawaii's counterpart repeats this exception in the Model Code's own words, providing that the bar does not apply when the second offense was not consummated when the former trial began.⁷⁹ Unlike the first exception, where the Hawaii text departs from the Model Code on the direction of the proof comparison, this one raises no variation to check. The exception is also confined to route (c). The Hawaii text places it beside a separate clause that bars a later prosecution after an acquittal or final order necessarily requiring a determination inconsistent with a fact the second offense must establish, and that clause contains no carve-out for offenses consummated later.⁸⁰

Routes (a) and (b) seldom matter on these facts, because the first factfinder could not have returned a verdict on a homicide that had not yet occurred, and the State cannot have been required to join an offense that did not yet exist. Section 1.10(1)(b) repeats the exception for prosecutions in another jurisdiction, and it is taught again there.

Inconsistent Determinations

The routes covered so far each compare offenses or conduct: whether the second offense was available at the first trial, whether it should have been joined, and whether it rests on the same conduct. Section 1.09(2) adds a route that compares findings instead. A later prosecution is barred when the former prosecution ended, after the information was filed or the indictment found, in an acquittal or in a final order or judgment for the defendant that has not been set aside, reversed, or vacated, and that acquittal, order, or judgment necessarily required a determination inconsistent with a fact which must be established for conviction of the second offense.⁸³ The provision does for a second prosecution under a different statute what § 1.08(2) does for a second prosecution under the same one, which is why it applies even when the second offense differs from the first. One textual difference deserves attention. Section 1.09(2) speaks only of a fact, while § 1.08(2) refers to a fact or a legal proposition, so a determination that rests purely on a point of law does not fit § 1.09(2) by its terms.

The reason for this route lies in what a second trial would ask of a second factfinder. When an acquittal necessarily decided a fact the State must prove again, a second prosecution that depends on that fact invites a second jury to overrule the first. The State would be using a different charge to relitigate a question it had already lost, and the first verdict does not weaken because the second charge carries a new label. The earlier routes can miss this situation, because a second offense may involve a different victim or a different harm and so slip past the same-conduct comparison while still requiring the very fact the first factfinder rejected. Comparing findings closes that gap.

The word necessarily has its own job. A jury that acquits usually gives no reasons, so a court applying this route must work out what the verdict decided. If the verdict could have rested on any of several grounds, no single ground was required, and a bar built on one of them would rest on a guess about the jury's thinking. Such a bar could shield a defendant from prosecution on facts that no factfinder ever resolved. Requiring that the determination be a necessary one confines the bar to facts the verdict could not have been reached without deciding. The other textual conditions serve narrower ends. The timing clause confirms that a formal charge was actually put to a tribunal, and the requirement that the order not have been set aside, reversed, or vacated means a determination wiped out on review leaves nothing for a later charge to contradict.⁸⁴

In Ashe v. Swenson the defendant was charged with robbing one of several players at a poker game, and the only contested issue at trial was whether he was one of the robbers. The jury acquitted. The State then tried him for robbing a different player at the same game, and the second prosecution was barred because the acquittal necessarily decided identity, a fact the second robbery also required. The second charge did not have to be the same offense, or even involve the same victim, for the first verdict to contradict it, and § 1.09(2) writes that same logic into the Code.⁸⁵

The poker-game case and the store scene both end with a second robbery charge against a different victim, so the victim cannot be what moves the answer. What differs is how much the first trial left open. In the poker-game case one contested issue meant the verdict could have only one meaning, while in the store scene the verdict had several possible meanings, and only a verdict with a single possible meaning triggers § 1.09(2). When the route fails, the other routes remain available, so routes (a) through (c) must still be tested on the same facts.

Hawaii's counterpart repeats the provision in nearly the same words: the former prosecution must have been terminated by an acquittal or by a final order or judgment for the defendant that has not been set aside, reversed, or vacated, and that necessarily required a determination inconsistent with a fact which must be established for conviction of the second offense.⁸⁷ The Hawaii text quoted in State v. Aiu also refers only to a fact. It does not repeat the clause tying the termination to the filing of the information or the finding of the indictment, so a reader working in that jurisdiction should check the statute itself before assuming the timing condition applies.⁸⁸

Two errors recur with this route. The first is treating an acquittal alone as enough, as though any not-guilty verdict barred any later charge touching the same events, when the bar attaches only to facts the verdict necessarily decided. The second is importing the exceptions that belong to the same-conduct route. The Hawaii text places the different-harm exception and the unconsummated-offense exception inside the same-conduct clause and gives the inconsistent-determination clause its own subsection without them.⁸⁹ A homicide that was not consummated when an assault trial began is therefore still barred if the assault acquittal necessarily found that the defendant was not the person who inflicted the injury, because the homicide requires proof of exactly that fact.