Wyoming Conditional Pleas: If Any Reserved Issue Is Non-Dispositive, the Entire Rule 11(a)(2) Plea Is Invalid

I. Introduction

In Sabrina Kaylee Sunshine Stone v. the State of Wyoming, 2026 WY 22 (Wyo. Feb. 17, 2026), the Wyoming Supreme Court resolved the appeal on a threshold procedural ground: whether Ms. Stone’s conditional guilty plea complied with W.R.Cr.P. 11(a)(2).

Ms. Stone (the defendant and appellant) entered a conditional guilty plea to felony child endangerment after the district court denied her motion to suppress evidence arising from a traffic stop, questioning, and searches of her truck and apartment. She sought appellate review of three suppression-related issues: (1) whether the traffic stop was justified at its inception; (2) whether her statements were obtained in violation of Miranda; and (3) whether her statements were voluntary.

The Supreme Court did not reach the merits of those Fourth and Fifth Amendment questions. Instead, it held the conditional plea was invalid because not all reserved issues were “dispositive” as Rule 11(a)(2) requires. The Court vacated the judgment and sentence and remanded for further proceedings.

II. Summary of the Opinion

The Court reaffirmed a strict Rule 11(a)(2) rule: a conditional guilty plea is valid only if the reserved issues are specified in writing, the State consents, the district court approves, and the issues reserved are dispositive. Although Ms. Stone satisfied the first three elements, she failed the fourth because two of her reserved issues (the Miranda and voluntariness questions) were not dispositive: even if she won on those issues, the State could still proceed on the child endangerment charge based on the methamphetamine found in her truck.

Because at least one reserved issue was not dispositive, the Court held the entire conditional plea invalid, declined to reach the merits of the suppression issues, and reversed and remanded.

III. Analysis

A. Precedents Cited

The Court’s reasoning is largely an application of recent Wyoming conditional-plea jurisprudence, anchored in a line of cases that construe “dispositive” strictly and treat noncompliance as a structural defect in the plea.

  • Kotrc v. State, 2025 WY 114, ¶¶ 18, 21-26, 578 P.3d 40, 43-45 (Wyo. 2025): The Court treated Kotrc as the primary template. Kotrc provides the standard of review (de novo), states the four elements for a valid conditional plea, defines “dispositive,” and reiterates the remedy—vacatur and remand—when the plea is invalid. Stone is explicitly “similar to Kotrc” both in satisfying the first three elements and failing the fourth.
  • Walters v. State, 2008 WY 159, ¶¶ 12, 21, 23-25, 197 P.3d 1273, 1277, 1279-80 (Wyo. 2008): Cited for both the de novo interpretive approach to Rule 11(a)(2) pleas and the institutional concern that conditional pleas be limited to truly case-ending issues. Walters supports the Court’s general rule: when the conditional plea is invalid because issues are not dispositive, appellate courts should usually decline to decide the merits.
  • Barney v. State, 2022 WY 49, ¶ 23, 507 P.3d 459, 463 (Wyo. 2022): Cited (via Kotrc) as the source for the four-part validity test and the “dispositive” requirement.
  • Hardman v. State, 2018 WY 24, ¶¶ 3-4, 413 P.3d 116, 117 (Wyo. 2018) and Brown v. State, 2017 WY 45, ¶¶ 9, 11-13, 12, 393 P.3d 1265, 1270-71 (Wyo. 2017): These cases further articulate “dispositive” as meaning that appellate success must require dismissal or suppression of evidence necessary for conviction, and stress the practical inquiry: “whether the appeal will end the case.”
  • United States v. Bundy, 392 F.3d 641, 648 (4th Cir. 2004): Quoted for the crisp formulation of dispositiveness: “there should be no trial after the specified issues are resolved by the court of appeals.” Its inclusion underscores that Wyoming’s approach is aligned with a federal understanding of conditional pleas as an exception limited to trial-avoiding, case-dispositive questions.
  • Matthews v. State, 2014 WY 54, ¶¶ 2, 18, 322 P.3d 1279, 1279, 1282 (Wyo. 2014): Reinforces that the Supreme Court may raise the conditional-plea validity issue sua sponte and decline to address merits when an issue reserved is not dispositive.
  • Johnson v. City of Laramie, 2008 WY 73, ¶ 6, 187 P.3d 355, 357 (Wyo. 2008) and Bouch v. State, 2006 WY 122, ¶ 28, 143 P.3d 643, 652 (Wyo. 2006): Cited for the limited circumstances where the Court may depart from the general rule and reach merits despite an invalid plea— e.g., judicial economy or important clarifications of law. The Court found no such circumstances here.
  • Miranda v. Arizona, 384 U.S. 436 (1966): Not decided on the merits, but central to the reserved issues. Its presence illustrates the type of constitutional suppression questions defendants often attempt to preserve under conditional pleas—and the Court’s insistence that only case-ending ones qualify.

B. Legal Reasoning

The Court’s reasoning proceeds in a tight, rule-based sequence:

  1. Rule 11(a)(2) is a gatekeeping rule. Before considering suppression issues, the Court must confirm it has a procedurally valid conditional plea that properly presents the reserved issues for appellate review.
  2. Four elements control validity. Applying Kotrc and Barney, the Court checked:
    • Writing: Ms. Stone reserved her right to appeal in writing.
    • State consent: The prosecutor consented.
    • Court approval: The district court approved and explained the plea.
    • Dispositive issues: The decisive element in dispute.
  3. “Dispositive” is measured issue-by-issue, and all reserved issues must be dispositive. The Court reiterated the substantive test: an issue is dispositive only if success on appeal requires dismissal or suppression of evidence necessary for conviction—i.e., “the appeal will end the case.”
  4. Only the stop-validity issue could end the case. The Court accepted that if the initial stop were unlawful, suppression could eliminate all ensuing evidence and end the prosecution.
  5. The Miranda/voluntariness issues were not dispositive because independent evidence remained. Even if Ms. Stone’s incriminating statements and the apartment methamphetamine were suppressed, the methamphetamine found in her truck would still support child endangerment under Wyo. Stat. Ann. § 6-4-405(b), at least as charged (vehicle and dwelling), and as supported by the plea’s factual basis (“driving around with methamphetamine in my vehicle with my daughter present”).
  6. Non-dispositive + reserved = invalid conditional plea. Under Wyoming precedent, “if even one” reserved issue is not dispositive, “the entire plea is invalid.”
  7. Remedy and restraint. The Court vacated the plea-based judgment and sentence, remanded for further proceedings, and (consistent with Walters and Kotrc) declined to reach suppression merits because no exceptional circumstances warranted departure.

C. Impact

1) Plea bargaining and appellate strategy.
Stone reinforces that Wyoming defendants cannot use a conditional plea to preserve a “package” of suppression issues unless each issue is case-ending. Counsel must either (a) narrow reservations to purely dispositive issues, (b) litigate and proceed to trial, or (c) negotiate other mechanisms (where available) without attempting to preserve non-dispositive issues under Rule 11(a)(2).

2) Trial courts’ Rule 11 role.
Although the first three elements were satisfied here, the decision underscores that district courts should actively assess dispositiveness at the plea colloquy. A court’s acceptance of the plea does not insulate it from later invalidation.

3) Incentive to define the evidentiary baseline.
Dispositive analysis turns on whether the prosecution retains sufficient evidence after the challenged ruling is corrected. Stone highlights how charging language, the factual basis for the plea, and independent physical evidence can defeat dispositiveness even when significant statements or additional contraband might be suppressed.

4) Appellate docket management.
The Court’s refusal to reach merits absent exceptional circumstances preserves the limited purpose of conditional pleas and discourages advisory or partial appeals.

IV. Complex Concepts Simplified

  • Conditional guilty plea (W.R.Cr.P. 11(a)(2)): A guilty plea that allows a defendant to appeal specified pretrial rulings (typically suppression rulings). If the defendant wins the appeal, she can withdraw the plea. It is an exception to the general rule that a guilty plea waives most appellate issues.
  • Dispositive issue: An issue is dispositive only if winning it necessarily ends the prosecution—because the charge must be dismissed or because the key evidence required for conviction would be suppressed. If the State could still prove the crime with other evidence, the issue is not dispositive.
  • Motion to suppress: A request to exclude evidence (physical items, statements, test results) because it was obtained unlawfully (e.g., illegal stop/search, or unconstitutional interrogation).
  • Miranda: Police must advise suspects of rights (silence, counsel) when a suspect is in custody and subjected to interrogation. If Miranda applies and is violated, resulting statements may be excluded.
  • Voluntariness: Even if Miranda is satisfied, a confession must be the product of free will rather than coercion. Involuntary statements may be suppressed.
  • Vacate and remand: The Supreme Court nullifies the plea-based judgment and sentence and returns the case to the district court, where proceedings resume (often with the defendant able to plead anew or proceed toward trial).

V. Conclusion

Stone does not change the substance of Wyoming search-and-seizure or interrogation law; it strengthens a procedural boundary. The decision reaffirms that Rule 11(a)(2) conditional pleas are valid only when every reserved issue is dispositive. When a defendant reserves even one non-dispositive issue, the entire plea fails, the conviction and sentence must be vacated, and the appellate court will ordinarily decline to address the merits. The case is a clear warning that conditional pleas are a narrow tool meant to resolve case-ending legal questions—not a vehicle for broad suppression review.