3. Analysis: Legal Reasoning and Precedents
A. Consent and manifest necessity are independent grounds for retrial
The constitutional starting point is the prohibition against placing a defendant twice in jeopardy for the same offense. That protection includes an important interest in completing a trial before the original jury. Nevertheless, terminating a trial before verdict does not invariably prohibit another trial.
Relying on United States v. Dinitz, 424 U.S. 600, 606–07 (1976), and McLaughlin v. Fahringer, 150 Ariz. 274, 277 (1986), the court explained that retrial generally remains permissible when the defendant consents to a mistrial or when manifest necessity justifies one. These are alternative grounds, not cumulative requirements. A defendant-requested mistrial ordinarily does not require an additional finding of manifest necessity.
The court also cited Pool v. Superior Court, 139 Ariz. 98, 108–09 (1984), as part of the Arizona double-jeopardy framework. It did not separately develop that decision’s misconduct analysis because the lower courts had found the prosecutorial error unintentional.
Under Oregon v. Kennedy, 456 U.S. 667, 673–74, 679 (1982), a defendant’s mistrial request does not automatically authorize retrial when governmental conduct was intended to provoke that request. The important distinction is between ordinary trial error that causes a defendant to seek a mistrial and deliberate governmental manipulation of that choice. Here, the finding of unintentional error left the ordinary consent rule applicable.
The opinion conducted a unified federal and state constitutional analysis, citing State v. Eagle, 196 Ariz. 188, 190 ¶ 5 (2000). The parties had not argued for different interpretations of the two constitutions. Accordingly, the opinion should not be treated as independently resolving every question concerning the scope of Arizona’s misconduct-based double-jeopardy protections.
B. The decisive moment for withdrawing consent is the court’s ruling
The principal new rule emerges from the court’s synthesis of federal decisions distinguishing timely withdrawal from an attempted post-ruling change of position.
Timely withdrawal: United States v. Crotwell
In United States v. Crotwell, 896 F.2d 437 (10th Cir. 1990), the defendant initially joined a co-defendant’s mistrial motion but expressly opposed a mistrial at a later hearing before the court ruled. The Tenth Circuit concluded that he had not consented to the mistrial ultimately declared.
The Arizona Supreme Court treated this decision as establishing that an initial request is not irrevocable while the motion remains undecided. The defendant can change position, provided that change reaches the court before its ruling.
Timely limitation: Weston v. Kernan and Davis v. Brown
In Weston v. Kernan, 50 F.3d 633 (9th Cir. 1995), the trial judge took an oral mistrial request under advisement. Before a ruling, the defendant filed a written motion making clear that he sought either a mistrial with prejudice based on prosecutorial misconduct or curative instructions. The Ninth Circuit held that he had not consented to a mistrial allowing reprosecution.
The timing distinguished that case from Robbins. The court of appeals had emphasized that the Robbins defendants objected before the jury was discharged. The Supreme Court instead emphasized that the defendant in Weston v. Kernan clarified his request before the trial judge decided it.
Davis v. Brown, 664 N.E.2d 884, 886–87 (N.Y. 1996), reinforced the same point: counsel may limit a request to a mistrial with prejudice, but must establish that limitation before the ruling.
Untimely withdrawal: Earnest v. Dorsey
Earnest v. Dorsey, 87 F.3d 1123 (10th Cir. 1996), supplied the closest analogy. The defendant twice sought a mistrial and attempted to withdraw his requests only after the court granted one without prejudice. The Tenth Circuit distinguished both timely withdrawal and an intervening clarification, concluding that the defendant could not deny consent after the court acted.
Drawing these decisions together, the Arizona Supreme Court adopted a readily identifiable cutoff: withdrawal or clarification must precede the ruling, not merely the jury’s discharge. This gives the trial court a reliable statement of the defendant’s position when it decides whether to terminate the trial.
C. Requesting dismissal “additionally” does not condition a mistrial motion
Jie’s counsel first requested a mistrial and later sought dismissal with prejudice “additionally.” The court read that word naturally: counsel was requesting two forms of relief, not making one contingent on the other. The court could therefore grant the mistrial while denying permanent dismissal.
This distinction reflects different legal inquiries:
- Mistrial: Whether the current proceeding has been compromised so seriously that it should end without a verdict.
- Dismissal with prejudice: Whether the prosecution should be permanently barred from proceeding on the charges.
Arizona Rule of Criminal Procedure 16.4(d) ordinarily makes dismissal without prejudice unless the interests of justice require otherwise. In re Arnulfo G., 205 Ariz. 389, 391 ¶ 9 (App. 2003), identifies prejudice to the defendant’s ability to defend the charges as the most important consideration in deciding whether dismissal with prejudice is warranted.
By contrast, State v. Miller, 234 Ariz. 31, 40 ¶ 25 (2013), concerns the extraordinary remedy of mistrial and the significance of improper evidence reaching the jury. A conclusion that the present jury has been irreparably prejudiced does not necessarily establish that a new, untainted jury cannot fairly hear the case.
State v. Urrea, 244 Ariz. 443, 446 ¶ 15 (2018), quoting State v. Payne, 233 Ariz. 484, 504 ¶ 61 (2013), further supported the requirement of timely clarity by characterizing a mistrial as an “extraordinary remedy.” A party invoking that remedy must communicate any limitation before the court grants it.
Joinder in a co-defendant’s motion
Zachary’s counsel agreed with and joined Jie’s counsel’s “sentiment.” In context, the Supreme Court understood this as joinder in both the mistrial request and the additional request for dismissal with prejudice.
United States v. Huang, 960 F.2d 1128, 1133–34 (2d Cir. 1992), illustrated the contrasting situation. There, defendants in a group prosecution expressly separated themselves from their co-defendants’ unconditional mistrial request. The lesson is that jointly tried defendants may pursue different remedies, but a defendant wishing to take a different position must communicate it explicitly.
D. Later conduct cannot rewrite an earlier request
The Supreme Court also rejected the proposition that post-ruling objections could retrospectively establish that the defendants’ earlier motions were conditional or ambiguous. Even if their words admitted another interpretation, the defendants could have resolved that uncertainty before the ruling.
The court distinguished two Arizona authorities relied upon below:
- State v. Henderson, 116 Ariz. 310, 314 (App. 1977): Counsel’s pre-mistrial conduct and failure to object supported consent. Participation in a later trial without objection merely confirmed the position already established; it did not create a rule allowing later conduct to redefine an earlier request.
- State v. Dickinson, 242 Ariz. 120, 124 ¶ 15 (App. 2017): A defendant’s failure to seek dismissal with prejudice after a mistrial did not erase his prior objection to the mistrial. Later inaction could not undo a clearly stated earlier position.
The governing principle therefore works in both directions: later conduct does not ordinarily transform an established objection into consent, and later objections do not retroactively withdraw consent already given and acted upon.
The holding concerns the double-jeopardy consequences of a defendant’s request. It should not be overstated as a general declaration that trial courts lack all authority to reconsider their rulings.
E. Manifest necessity has two alternative branches
Although consent independently resolved the case, the Supreme Court upheld manifest necessity as an alternative ground. Its analysis corrects an important misunderstanding of the governing standard.
The foundational authorities
United States v. Perez, 22 U.S. (9 Wheat.) 579, 580 (1824), supplies the longstanding formulation permitting a mistrial when manifest necessity exists or the ends of public justice would otherwise be defeated.
Drawing on Illinois v. Somerville, 410 U.S. 458, 463–64 (1973), State v. Madison, 114 Ariz. 221, 223–24 (1977), recognized two circumstances supporting the exercise of sound discretion:
- A verdict would necessarily be reversed on appeal because of an obvious procedural error; or
- An impartial verdict cannot be reached.
The alternatives are disjunctive. Although State v. Madison principally involved inevitable reversal, its rule was not limited to that circumstance.
State v. Aguirre, 260 Ariz. 549, 556–57 ¶¶ 37–43 (App. 2025), illustrated both branches. The trial court’s apparent endorsement of the State’s evidence made reversal inevitable and independently rendered an impartial verdict impossible. That decision therefore supported, rather than displaced, the two-branch framework.
The court of appeals’ error
The court of appeals effectively made certainty of appellate reversal the controlling requirement. That omitted the very branch on which the trial court relied: the inability of this jury to decide the case impartially.
The distinction matters because a trial judge must assess the fairness of an ongoing proceeding, not merely predict whether a future conviction will survive appellate review. A substantial, incurable threat to jury impartiality can justify ending the trial without establishing that every hypothetical conviction would certainly be reversed.
F. An incomplete record cannot support speculative fundamental-error review
The court of appeals reasoned that, had the defendants chosen to continue, review of the evidentiary error would have been restricted to fundamental error. It then concluded that the isolated, accidental reference probably would not meet that standard.
State v. Escalante, 245 Ariz. 135, 142 ¶ 21 (2018), identifies fundamental error as error affecting the foundation of the case, depriving a defendant of a right essential to the defense, or being so egregious that a fair trial was impossible.
But State v. Gendron, 168 Ariz. 153, 155 (1991), cautions that fundamental-error analysis requires examination of the entire record and a reasoned explanation showing why the standard applies. The special-action record contained only one pretrial transcript and transcripts from three days of an eight-day trial. That was insufficient to assess the excluded evidence’s full significance.
The Supreme Court therefore rejected the lower court’s use of fundamental-error review. It did not decide, on a complete record, whether this evidentiary error would ultimately qualify as fundamental. Nor did it endorse the lower court’s hypothetical preservation analysis.
G. “Primary control” protects a timely choice, not an unlimited right to change it
The court of appeals also relied on the principle that a defendant retains primary control over whether to continue a trial affected by error. Jones v. Kiger, 194 Ariz. 523, 526 ¶ 9 (App. 1999), derived that principle from United States v. Dinitz.
United States v. Dinitz recognizes the defendant’s choice between continuing before the original jury and abandoning a tainted proceeding. As explained through its citation to United States v. Jorn, 400 U.S. 470, 484 (1971), continuing may preserve an opportunity for immediate acquittal; seeking a mistrial may avoid a conviction followed by an appeal and another prosecution.
In United States v. Dinitz, the defendant requested a mistrial after the trial court excluded his attorney for misconduct. The Supreme Court rejected an approach that treated the mistrial as though imposed over the defendant’s objection and then demanded manifest necessity. Respecting the defendant’s choice meant recognizing the legal consequences of his own request.
The doctrine also protects defendants who object to court-initiated mistrials, as illustrated by Jones v. Kiger, State v. Dickinson, and McLaughlin v. Fahringer, or to prosecution-requested mistrials, as in State v. Woods, 237 Ariz. 214, 218 ¶¶ 11–12 (App. 2015).
In Robbins, however, respecting primary control meant recognizing the defendants’ pre-ruling requests. The doctrine did not require the trial judge to reassess manifest necessity merely because the defendants changed position after obtaining a mistrial. Nor does primary control give a defendant an absolute veto over a genuinely necessary mistrial.
H. Appellate deference depends on the circumstances
The court distinguished two standards of review. Under State v. Moody, 208 Ariz. 424, 437 ¶ 18 (2004), whether double jeopardy bars retrial is reviewed de novo. Under State v. Gallardo, 225 Ariz. 560, 567 ¶ 26 (2010), the decision to declare a mistrial is reviewed for abuse of discretion.
Arizona v. Washington, 434 U.S. 497 (1978), further establishes a spectrum of scrutiny for mistrials declared without the defendant’s consent. Strictest scrutiny guards against situations involving unavailable critical prosecution evidence or prosecutorial use of a mistrial to harass the accused or gain tactical advantage. Other circumstances, such as jury deadlock, warrant great deference.
State v. Dickinson demonstrates that reduced deference may be appropriate even without prosecutorial misconduct when the defendant neither caused nor consented to the mistrial and expressed a timely preference to continue.
Robbins does not make that framework irrelevant generally. Rather, the defendants’ consent made it unnecessary here. The court also rejected automatic strictest scrutiny merely because an unintentional prosecution error led the defendants themselves to request a mistrial. Such an approach would conflict with United States v. Dinitz, under which consent ordinarily permits retrial without any manifest-necessity finding.
I. The trial court exercised sound discretion on these facts
The trial judge heard the defense arguments and considered the State’s proposed alternatives before ruling. The reference to “millions of dollars” came from a detective and directly implicated the financial and enterprise-related charges. It was not simply an unrelated or innocuous remark.
Both defense lawyers insisted that the harm was irreparable. Their contemporaneous descriptions supported the court’s assessment that the jury could not disregard the information. Those statements were not merely later procedural obstacles; they were evidence of how seriously the challenged reference affected the defense at the time.
The Supreme Court therefore upheld the finding that an impartial verdict was no longer attainable. Its conclusion remains fact-specific: the decision does not establish that every reference to excluded evidence requires a mistrial.