Indian Status Is a Defendant-Proved Affirmative Defense Under § 1152 When the Victim Is Indian

Case: United States v. Hebert, consolidated with United States v. Ruiz, Nos. 24-7030 and 24-2128

Court: United States Court of Appeals for the Tenth Circuit, en banc
Date:
Opinion: Judge Matheson; separate concurrence by Judge Hartz, joined by Judge Bacharach.

1. Introduction

This consolidated decision changes who must prove a defendant’s Indian status in an important category of federal criminal prosecutions. Partially overruling United States v. Prentiss, 256 F.3d 971 (10th Cir. 2001) (en banc), known as Prentiss II, the Tenth Circuit holds that, when the victim is an Indian, a defendant prosecuted under the General Crimes Act, 18 U.S.C. § 1152, must establish Indian status as an affirmative defense. The defendant bears both the initial burden of producing supporting evidence and the ultimate burden of persuasion, by a preponderance of the evidence.

Previously, the government had to prove beyond a reasonable doubt that the defendant was not an Indian. That requirement produced reversals in the separate appeals of Dennis Hebert and Joel Ruiz, whose convictions involved sexual abuse of children in Indian country. On rehearing en banc, the court rejected the underlying allocation of proof, vacated the panel opinions, and returned the cases to their respective panels for further proceedings, including consideration of possible retrials.

The decision therefore concerns more than evidentiary convenience. It addresses the distinction between offense elements and statutory exceptions, the meaning of “jurisdiction” in federal Indian law, the limits of protective interpretive canons, and the constitutional consequences of changing a criminal-law rule during direct appellate review.

The prosecutions

Defendant Underlying proceedings Original appellate ruling
Dennis Hebert Prosecuted in the Eastern District of Oklahoma for aggravated sexual abuse of a six-year-old boy on the Choctaw Nation reservation. A jury convicted him, and he received 30 years’ imprisonment followed by lifetime supervised release. The panel held that testimony about his self-identification, relatives’ limited knowledge, and unsuccessful inquiries to several tribes did not establish non-Indian status beyond a reasonable doubt.
Joel Ruiz Prosecuted in the District of New Mexico on two counts involving sexual acts with children under twelve in Indian country. A jury convicted him on one count, and he received 30 years’ imprisonment followed by ten years’ supervised release. The panel found insufficient proof of non-Indian status, emphasizing limited personal knowledge, inadequate tribal inquiries, and the improper inference that Mexican birth or appearance excluded Indian status.

Both defendants had unsuccessfully sought judgments of acquittal at trial under Federal Rule of Criminal Procedure 29. Their appellate sufficiency challenges concerned non-Indian status, rather than the evidence establishing the substantive sexual-abuse offenses. Both also raised other appellate issues that the original panels did not reach.

Professor Kevin Washburn participated as an amicus supporting affirmance; the Tenth Circuit Federal Public Defenders supported the defendants.

2. Statutory Background

The General Crimes Act

Section 1152 extends federal criminal laws governing federal enclaves to Indian country. Its second paragraph contains three exceptions:

  1. Offenses committed by one Indian against another Indian’s person or property;
  2. Offenses committed by an Indian who has already been punished under the tribe’s local law; and
  3. Cases in which treaty provisions secure exclusive jurisdiction to the tribes.

The present decision concerns the first exception—the intra-Indian exception—and specifically a defendant’s status when the victim is an Indian. It does not comprehensively decide the allocation of proof for every exception or every combination of defendant and victim status.

The Major Crimes Act

Section 1153 separately authorizes federal prosecution of Indians who commit specified major crimes in Indian country, including certain sexual offenses. Accordingly, establishing Indian status may defeat a prosecution under § 1152 without establishing immunity from federal prosecution under another statute.

The distinction between the statutes remains important. The court did not merge §§ 1152 and 1153, authorize automatic substitution of one for the other, or declare defendant status irrelevant whenever a charged offense appears in the Major Crimes Act.

What constitutes Indian status?

For these statutes, the Tenth Circuit applies a two-part test: a person must have some Indian ancestry and must be recognized as an Indian by a tribe or the federal government. Relevant recognition factors include tribal enrollment, assistance reserved for Indians, benefits of tribal affiliation, and social recognition through reservation residence and participation in Indian social life.

Both requirements must be met. Indian status is therefore not determined simply by appearance, birthplace, or a person’s selection of a racial or ethnic label. Mexican or Hispanic identification does not itself exclude the legally relevant ancestry and recognition.

3. Summary of the Opinion

Question Holding
Is the defendant’s non-Indian status an essential element when the victim is Indian? No. The defendant’s Indian status is an affirmative defense under § 1152’s intra-Indian exception.
Who must initially produce evidence of Indian status? The defendant.
Who bears the ultimate burden of persuasion? The defendant, by a preponderance of the evidence.
Does diversity of Indian status establish the federal court’s subject-matter jurisdiction? No. Federal criminal subject-matter jurisdiction derives from 18 U.S.C. § 3231.
Does the Indian canon control the interpretation? No. It has, at most, a limited role, and the court does not rely on it.
Are retrials constitutionally barred? No. Neither double jeopardy nor the asserted due-process restrictions on retroactive judicial decisions categorically prevent retrial in this procedural posture.
What is the immediate disposition? The panel opinions are vacated, and both appeals return to their respective panels. Retrials remain possible, not automatically ordered.

The central qualification is that the court changes the allocation of proof, not the underlying substantive prohibition or the statutory existence of the intra-Indian exception.

4. Analysis

A. Precedents Cited and Their Influence

1. The precedent partially overruled: United States v. Prentiss

The three decisions identified as Prentiss I, Prentiss II, and Prentiss III arose from an arson prosecution involving a tribal member’s home in Indian country. The initial indictment did not allege the relevant Indian or non-Indian statuses. The original panel treated that omission as a failure to allege essential elements.

The en banc decision, Prentiss II, produced two different majority opinions. Judge Henry’s majority held that both the victim’s and the defendant’s statuses were essential elements. Judge Baldock’s separate majority held that omitting those elements did not deprive the district court of subject-matter jurisdiction and was subject to harmless-error review. On remand, Prentiss III concluded that the omission was not harmless.

The present court rejects Judge Henry’s treatment of the defendant’s status in prosecutions involving Indian victims. It does not discard Judge Baldock’s distinction between an offense requirement and adjudicatory jurisdiction. Indeed, that distinction becomes a central reason for rejecting the defendants’ jurisdictional arguments.

The partial nature of the overruling matters. The opinion does not comprehensively replace every rule governing victim status or every application of § 1152.

2. Statutory exceptions: McKelvey v. United States, United States v. Cook, and Cunningham v. Cornell University

McKelvey v. United States supplies the principal interpretive rule: when a statute states a general rule and then places an exception in a proviso or distinct clause, the prosecution ordinarily need not negate that exception in its indictment. The person invoking the exception must raise and establish it.

The court traces this principle to United States v. Dickson, which described it as a longstanding maxim of statutory interpretation, and to Dixon v. United States, which reaffirmed its settled status.

United States v. Cook recognizes a qualification. An exception may be so integrated into the definition of an offense that the offense cannot accurately be described without it. In that situation, the prosecution must address the exception as part of its case. But that decision also explains that a genuinely separable exception is a matter of defense.

Prentiss II had relied on the integrated-exception branch of United States v. Cook. The present court concludes that Cunningham v. Cornell University undermines that approach. That recent decision reaffirmed that statutory exemptions ordinarily create affirmative defenses and emphasized the narrow application of the integrated-exception rule, including situations in which the exception appears within the same sentence defining the offense.

Here, § 1152’s first paragraph independently states an intelligible rule extending federal law to Indian country. Its second paragraph separately lists exceptions. The court therefore treats the intra-Indian exception as a defense rather than an ingredient of the general rule. Paragraph placement is not presented as an invariably decisive formula; it supports the broader conclusion that the general rule and exception are textually separable.

The defendants’ attempt to limit this framework to statutes that independently define substantive crimes also fails. Nicoli v. Briggs and United States v. Carey appear in that discussion, but neither establishes that the general rule cannot apply to a statute extending other criminal laws to a particular location. Section 1152 itself adds a requirement—the offense’s occurrence in Indian country—even though another statute supplies the underlying prohibited conduct.

3. Older status decisions: Lucas v. United States and Famous Smith v. United States

These decisions had supported the earlier treatment of status as an element, but the en banc court substantially narrows their relevance.

Lucas v. United States concerned a victim’s status and rejected an instruction allowing a racial presumption to resolve that factual question. The present opinion emphasizes that the case interpreted a different statute concerning tribal-court jurisdiction, not § 1152 or its predecessor. It therefore does not determine the allocation of proof now at issue.

Famous Smith v. United States likewise addressed the victim’s status, not the defendant’s. More importantly, it presented a sufficiency-of-the-evidence question. Although it recounted an instruction stating that the government had to establish the victim’s non-Indian status, the Court expressly declined to endorse the instruction’s legal propositions.

The Tenth Circuit thus refuses to convert that account of a jury charge into a binding rule about pleading or proof of the defendant’s status. It also rejects reliance on the Supreme Court reporter’s syllabus as a substitute for the Court’s actual reasoning. The observation that the decision received only one subsequent Supreme Court citation, in Sparf v. United States, is supplementary rather than an independent basis for disregarding precedent.

Hilderbrand v. United States and United States v. Torres are discussed as authorities supporting the earlier approach to status allegations or proof. Their historical relevance does not overcome the present court’s narrower analysis of the particular defense before it.

4. Intercircuit agreement and disagreement: United States v. Hester and United States v. Haggerty

The Tenth Circuit now agrees with these Ninth and Fifth Circuit decisions that a defendant prosecuted under § 1152, where the victim is Indian, bears the initial burden of raising Indian status.

It expressly disagrees with their treatment of the ultimate burden. Both other circuits place the ultimate burden of persuasion on the government once the defendant produces sufficient evidence. The Tenth Circuit instead leaves that burden with the defendant.

The court criticizes the other circuits’ comparatively brief reasoning. The Ninth Circuit relied on United States v. Guess, which in turn drew on Davis v. United States. But Dixon v. United States subsequently explained that the latter decision depended on the particular offense’s heightened mental-state requirement and did not displace the common-law allocation of affirmative-defense burdens.

The Fifth Circuit reasoned that Indian status affected the scope of the offense’s jurisdictional location requirement. The Tenth Circuit rejects that linkage: proof that both parties are Indians may establish a statutory exception, but it does not negate the historical fact that the crime occurred in Indian country.

United States v. Reza-Ramos is treated separately. Its discussion of a victim’s Indian status as a “jurisdictional element” raises a question the court does not decide. The present holding therefore should not be read as resolving every status-related disagreement among the circuits.

5. Affirmative-defense burdens and due process

Dixon v. United States and Smith v. United States provide the principal foundation for assigning the ultimate burden to the defendant. When Congress has not provided otherwise, the court presumes that the common-law allocation applies: the defendant must establish an affirmative defense.

That principle has an important constitutional limit. Under Smith v. United States and Patterson v. New York, the prosecution cannot avoid proving an offense element merely by labeling its negation an affirmative defense. The opinion also cites United States v. Unser and United States v. Lofton for the requirement that the government retain the ultimate burden when a defense negates an element.

Having first concluded that defendant status is not an element here, the court finds that limit inapplicable. The defense removes an otherwise covered case from § 1152’s reach; it does not negate the substantive sexual-abuse elements or the offense’s occurrence in Indian country.

The historical discussion also cites Justice Alito’s concurrence in Ruan v. United States. Its description of the common-law rule is supporting material from a separate opinion, not an independent majority holding governing this case.

The defendants invoked Musacchio v. United States by analogy to criminal limitations defenses, for which the government bears a burden once properly raised. The majority rejects the analogy because Indian-status information is especially accessible to the defendant. Judge Hartz’s concurrence, however, treats limitations doctrine as a reason to doubt an overly broad default rule and cites Grunwald v. United States in support.

United States v. Brown supplies the observation that the burden of production on a recognized defense is generally not onerous. United States v. Sturm confirms that genuine jurisdictional elements remain part of the government’s proof.

6. Superior access to evidence

The majority gives practical force to its doctrinal conclusion through the “peculiar knowledge” principle. Dixon v. United States, Selma, R. & D.R. Co. v. United States, and United States v. Hartsock support assigning proof obligations to a party especially well positioned to know the relevant facts.

A defendant will ordinarily have better access than prosecutors to family ancestry, tribal relationships, enrollment history, and recognition evidence. Requiring the government to disprove those possibilities beyond a reasonable doubt can entail a wide-ranging search for evidence of a negative. The original panel decisions illustrated that difficulty.

The citation to United States v. Erickson in the account of Hebert’s panel appeal concerns the demanding sufficiency standard applied under the former rule. It explains the original reversal but does not establish the new allocation.

7. Criminal authority in Indian country

United States v. McBratney and Draper v. United States establish the state-law rule for non-Indian offenses against non-Indians in Indian country. Donnelly v. United States explains that rule against the background of state admission and the resulting qualification of earlier federal authority. As reflected in United States v. Walker, that doctrine combines with § 1152’s intra-Indian exception to shape the Act’s practical application.

The court nevertheless distinguishes practical coverage from statutory construction. The judicially created non-Indian-against-non-Indian exception does not rewrite § 1152’s text or determine whether its separate statutory exceptions create affirmative defenses.

Oklahoma v. Castro-Huerta supplies an especially important textual premise: § 1152 extends federal law to Indian country but does not itself make federal authority exclusive or generally preempt state criminal authority. That decision recognizes concurrent federal and state authority over crimes by non-Indians against Indians.

Ex parte Crow Dog explains the historical intra-Indian exception. Congress responded to that decision through the Major Crimes Act, a history also described in United States v. Brice and United States v. Wadena. United States v. Wheeler provides background on traditional tribal justice, rather than a rule resolving the evidentiary question.

United States v. Kagama upheld the Major Crimes Act, while United States v. Lara and Haaland v. Brackeen recognize Congress’s broad authority over Indian affairs. Most directly, United States v. Antelope confirms Congress’s constitutional power to prescribe a criminal code for Indian country. These authorities defeat the contention that a particular allocation of status proof is constitutionally necessary to sustain federal legislation.

8. Status rules and the geographic jurisdictional element

The status test derives from United States v. Rogers. Its two requirements are developed through Prentiss III, United States v. Diaz, and United States v. King. United States v. Bruce emphasizes the substantial legal consequences of Indian status and also identifies the practical possibility of uncertainty obstructing prosecution under either § 1152 or § 1153.

The defendants analogized Indian status to the interstate-commerce connection discussed in United States v. Lopez. The court instead identifies the offense’s location in Indian country as the relevant constitutional “hook,” drawing on United States v. Jackson, United States v. Tony, United States v. Chavarria, and United States v. Patton. Torres v. Lynch supplies the conventional understanding of a jurisdictional element as connecting the offense to congressional power.

The opinion also rejects constitutional avoidance and the rule of lenity. The latter argument invokes Rewis v. United States, but the court finds no pertinent ambiguity warranting the defendants’ proposed construction.

9. Subject-matter jurisdiction: modern doctrine versus historical terminology

United States v. Tony, quoting United States v. White Horse, establishes the starting point: federal criminal subject-matter jurisdiction comes from § 3231. An element, exception, or defense may determine whether a prosecution succeeds without determining the court’s power to adjudicate it.

United States v. Cotton and Steel Co. v. Citizens for a Better Env't explain why older uses of “jurisdiction” cannot automatically control modern classifications. Historical restrictions on appellate and habeas review encouraged expansive jurisdictional terminology, illustrated by Ex parte Bain.

Louie v. United States is particularly significant because it directly distinguishes the United States’ substantive criminal authority from the convicting court’s adjudicatory jurisdiction. Whether the crime occurred in Indian country went to the merits, not the court’s subject-matter jurisdiction.

The same caution about terminology appears in Santos-Zacaria v. Garland, Fort Bend County. v. Davis, Harrow v. Dep't of Def., and Arbaugh v. Y&H Corp.. Sebelius v. Auburn Reg'l Med. Ctr. supports requiring a clear congressional indication before treating a statutory limitation as jurisdictional. By contrast, Patchak v. Zinke illustrates express language capable of stripping jurisdiction—language absent from § 1152.

Consequently, references to “jurisdiction” in decisions including United States v. Bryant, Keeble v. United States, and McGirt v. Oklahoma do not compel the defendants’ proposed allocation of proof. The court distinguishes their language and context rather than purporting to overrule those Supreme Court decisions.

10. The Indian canon

Ramah Navajo Chapter v. Lujan, E.E.O.C. v. Cherokee Nation, and Montana v. Blackfeet Tribe articulate the principle that ambiguous federal enactments should be construed for Indians’ benefit. Oneida County v. Oneida Indian Nation of N.Y. State connects that principle to the federal trust relationship.

The limiting authority is South Carolina v. Catawba Indian Tribe, Inc.: the canon cannot create an ambiguity or override clearly expressed congressional intent. The court finds § 1152’s general extension of federal law and its separate exceptions sufficiently clear.

Even assuming some role for the canon, Negonsott v. Samuels cautions against automatically equating tribal benefit with the benefit of accused Indian defendants. Its discussion, drawing on Bryan v. Itasca County, permits consideration of victims and tribal interests as well. The court therefore refuses to treat the canon as necessarily favoring the defendants’ preferred evidentiary rule.

11. Reconsidering precedent and defining en banc review

Pearson v. Callahan supports the court’s conclusion that stare decisis is not absolute and that reliance interests are generally weaker for procedural and evidentiary rules than for rules organizing primary conduct. The intervening clarification in the statutory-exception cases supplies the principal justification for partially overruling Prentiss II.

Kirkendall v. Dep't of Army and United States v. Padilla explain the significance of the questions designated for en banc review. Because the court expressly requested briefing on the ultimate burden, it regards that issue as properly presented. Exby-Stolley v. Bd. of Cnty. Comm'rs supports resolving a recurring legal issue to guide potential proceedings on remand.

That last decision, together with Contreras-Bocanegra v. Holder, United States v. Nacchio, and United States v. Perez, also provides procedural examples of vacating panel decisions after en banc reconsideration.

12. Retrial and retroactivity

Burks v. United States establishes that an appellate determination of legally insufficient evidence bars retrial. The court does not weaken that rule. It holds that the rule does not control here because the panel judgments were vacated through en banc review, the mandates were stayed, and the en banc court now vacates the panel opinions. No operative acquittal or insufficiency determination remains.

United States v. Scott, Evans v. Michigan, and Arizona v. Rumsey establish the protection afforded actual trial-level acquittals, even when based on legal error. United States v. Jenkins involved proceedings that ended without a guilty verdict. The present cases differ: both juries convicted, and both trial courts denied acquittal motions.

On retroactive judicial interpretation, United States v. Budder supplies the due-process framework, and Rogers v. Tennessee asks whether the interpretation was unexpected and indefensible by reference to previously expressed law. United States v. Muskett supports the relevance of an existing circuit split to fair notice that a different construction might ultimately prevail.

The court emphasizes that sexual abuse of children was already prohibited and that other circuits already treated Indian status as an affirmative defense. Those circuits’ agreement concerns the defense’s classification and initial production burden; they do not support the Tenth Circuit’s new allocation of the ultimate burden, on which the opinion expressly disagrees with them.

B. The Court’s Legal Reasoning

Step 1: Separate the general rule from the exception

The court begins with statutory text rather than the practical importance of status. Section 1152’s first paragraph can operate as an understandable extension of federal enclave law without incorporating the second paragraph’s intra-Indian exception into its definition.

This rejects a central premise of the former rule: a fact’s importance to the ultimate availability of federal punishment does not necessarily make it an offense element. An exception can be decisive while remaining a defense.

Step 2: Reject symmetry as a substitute for interpretation

The defendants argued that victim and defendant status must receive the same treatment. The court finds no such necessary symmetry. The older victim-status decisions do not answer who must establish the present defendant-status defense, and the prosecution and defense may have very different access to the relevant information.

Importantly, the court does not use this reasoning to announce a comprehensive replacement rule for victim status. It decides the narrower issue before it.

Step 3: Distinguish three meanings of jurisdiction

The opinion separates Congress’s constitutional authority to criminalize conduct, an offense’s jurisdictional element connecting it to that authority, and the district court’s power to hear federal criminal cases. Treating all three as one question would incorrectly transform every limitation on a criminal statute’s application into a limitation on adjudicatory power.

Congress has authority to legislate for Indian country; the government must establish the relevant location requirement; and § 3231 supplies the federal court’s adjudicatory authority. The defendant-status exception does not collapse those distinct inquiries.

Step 4: Apply the affirmative-defense burden without reducing proof of actual elements

The classification decision comes first. Once Indian status is identified as a defense rather than an element, the majority applies the presumed common-law allocation of production and persuasion. Nothing in § 1152 displaces that allocation, and the defense does not negate an independently required element.

The government therefore retains its obligation to prove the actual offense elements beyond a reasonable doubt. The new rule does not create a general presumption of guilt.

Step 5: Reinforce the doctrinal rule with comparative access to evidence

The majority considers it more workable to require affirmative proof of ancestry and recognition than to require the prosecution to eliminate every possible basis for those characteristics. This practical reasoning reinforces, rather than replaces, the statutory analysis.

The decisive effect appears in uncertain cases. After adequate supporting evidence is introduced, uncertainty about Indian status no longer necessarily defeats the prosecution. If the defendant cannot show that Indian status is more likely than not, the defense fails.

Step 6: Preserve an opportunity to address reliance on the former rule

Neither defendant had notice at trial that he was responsible for establishing the defense. Although that circumstance does not create a categorical constitutional bar to further proceedings, it prevents the court from treating the changed allocation as a purely abstract correction requiring no consideration of fairness.

The en banc court accordingly returns the appeals to the panels rather than simply ordering retrials or declaring the convictions finally affirmed.

C. Judge Hartz’s Concurrence

Judge Hartz, joined by Judge Bacharach, agrees that defendants bear the production burden and that the cases should return to the panels. He identifies two matters requiring greater caution.

Prejudice should inform whether a new trial is needed

Neither defendant produced evidence establishing Indian status at the original trial. Judge Hartz considers it sensible to require a showing that reliance on Prentiss II actually caused prejudice—for example, that the defendant could have offered status evidence had he known of his obligation.

He cites United States v. Bay, where a remand permitted inquiry into whether a defendant could support an entrapment defense after the governing law changed. A retrial would serve little corrective purpose, he reasons, if the defendant has no evidence supporting the newly assigned defense.

The majority leaves room for a district court to consider this prejudice question. It does not adopt an unconditional rule that every affected defendant must receive a new trial.

The ultimate burden need not have been decided now

Judge Hartz would defer the persuasion question. Once a defendant produces meaningful evidence, such as documentation of tribal membership, the informational disadvantage facing the prosecution may substantially diminish. The experience of the Fifth and Ninth Circuits may therefore be more workable than the majority assumes.

He also questions extending historically derived burden rules to all affirmative defenses. Some historical authorities concerned homicide and circumstances bearing on culpability. Indian status and limitations defenses are morally neutral restrictions on prosecution, potentially warranting different treatment.

Finally, he raises a hypothetical involving proof of the victim’s status, where the defendant might not possess superior information. That hypothetical identifies a limit to the majority’s practical rationale; it is not an additional holding about victim-status burdens.

These reservations do not displace the majority’s rule. They identify the ultimate burden of persuasion as the opinion’s most contestable and consequential extension.

D. Impact on Future Cases

1. A significant change in trial preparation

In covered Tenth Circuit prosecutions, defense counsel must investigate Indian status affirmatively rather than rely solely on deficiencies in the government’s effort to establish non-Indian status. Relevant evidence may include ancestry records, enrollment materials, tribal testimony, benefits records, and evidence of community recognition.

The decision does not require a defendant personally to testify. The defense may be supported through otherwise admissible documentary or witness evidence.

Prosecutors need not prove non-Indian status as an essential element in the category decided. They must still prove the substantive crime and its occurrence in Indian country, and address any properly presented affirmative defense under the governing instructions.

2. Alignment on production, a split on persuasion

The decision eliminates the Tenth Circuit’s disagreement with the Fifth and Ninth Circuits over who initially raises Indian status, but creates an express disagreement over who bears the risk of residual uncertainty. That division supplies a concrete issue for future appellate consideration.

3. Greater precision in jurisdictional arguments

Future litigants must identify whether a claimed defect concerns the merits, congressional power, or adjudicatory jurisdiction. Historical references to “jurisdiction” will not, without more, establish that a federal court lacks power to decide a § 1152 prosecution.

4. A limited, not displaced, Indian canon

The opinion does not abolish the Indian canon. It holds that the canon does not control this particular evidentiary allocation, especially absent relevant statutory ambiguity.

The court characterizes the change as leaving statutory coverage and structural sovereignty intact. Nevertheless, its practical consequences can be substantial: where status evidence remains uncertain, assigning the defendant the ultimate burden can determine whether the intra-Indian exception succeeds. Formal continuity in statutory coverage should therefore be distinguished from changes in litigation outcomes.

5. No automatic answer for the two defendants

Hebert’s remaining issues include the instructions defining non-Indian status and the prosecution’s use of his silence about status. Ruiz’s include a vagueness challenge and a modified Allen instruction—a supplemental instruction intended to encourage jury deliberation. The en banc opinion does not decide those claims.

The panels must consider their bearing on further proceedings. Depending on the result, district courts may consider retrial and any relevant prejudice from reliance on the former rule.

6. An unadopted alternative statutory theory

Professor Washburn proposed that, for substantive offenses listed in § 1153 involving Indian victims in Indian country, the defendant’s status should be irrelevant because one of the two statutes would cover the offense. The court declines to decide that proposal because the parties did not present or address it.

Citing Sierra Club v. EPA, the court applies its ordinary reluctance to decide arguments raised only by an amicus. The proposal must therefore be distinguished from the actual holding: Indian status remains legally material, but the defendant must establish it as the relevant § 1152 defense.

5. Complex Concepts Simplified

Essential element
A fact the prosecution must establish beyond a reasonable doubt to prove the charged offense. Under this decision, the defendant’s non-Indian status is not such an element in the category addressed.
Affirmative defense
A legally recognized reason why an otherwise covered prosecution cannot succeed. Here, an Indian defendant may invoke § 1152’s exception for offenses against another Indian.
Burden of production
The obligation to introduce enough evidence to place the defense genuinely in issue. It is the threshold requirement, not the final decision about whether the defense is true.
Burden of persuasion
The obligation to convince the factfinder that the defense is established. The defendant retains that obligation here.
Preponderance of the evidence
More likely than not. If the evidence on Indian status is evenly balanced, the defendant has not established the defense.
Jurisdictional element versus subject-matter jurisdiction
A jurisdictional element connects the criminal prohibition to federal legislative authority. Subject-matter jurisdiction is the court’s authority to hear the case. Failure to prove the former does not necessarily eliminate the latter.
Indian country
A statutory geographic category generally encompassing reservations, dependent Indian communities, and qualifying Indian allotments. It is not simply any place where an Indian lives.
Indian canon
An interpretive principle favoring Indians when relevant statutory language is ambiguous. It does not permit courts to manufacture ambiguity or necessarily favor an accused person over all other tribal interests.
Double jeopardy
A constitutional protection that generally prevents retrial after an acquittal or an operative appellate finding of insufficient evidence. Here, en banc proceedings displaced the panel rulings, leaving jury convictions rather than acquittals.
Ex post facto due process
Although the Ex Post Facto Clause governs legislation, due process also limits unforeseeable retroactive judicial expansions of criminal liability. The court finds no prohibited expansion in this change to status-proof burdens.
Vacatur and remand
Vacatur sets aside a ruling; remand returns the matter for further proceedings. Neither necessarily means that a new trial has already been ordered.

6. Conclusion

The decision establishes a precise rule: in a § 1152 prosecution involving an Indian victim, the defendant must produce evidence and prove Indian status by a preponderance of the evidence. It partially overrules Prentiss II, distinguishes statutory defenses from jurisdictional requirements, and rejects categorical constitutional barriers to possible retrials in these appeals.

Its broadest significance lies in shifting the risk of uncertainty about defendant status from the prosecution to the defense. Its principal limits are equally important: the court does not eliminate the intra-Indian exception, decide all victim-status questions, merge the General and Major Crimes Acts, or automatically order new trials.