State v. Ribas: Prosecutorial Theory Binding on Review; “10 Days” Is Material, Exact Offense Date Is Not, for Change-of-Residence Reporting

1. Introduction

State v. Ribas, 374 Or 750 (2026), required the Oregon Supreme Court to resolve a recurring tension in criminal prosecutions: (1) whether the state may defend a conviction on appeal using a factual theory it disclaimed below, and (2) how precisely time must be pleaded and proved for the felony crime of failing to report a sex-offender change of residence.

Parties: The State of Oregon (respondent) prosecuted Edwardo Luis Ribas (petitioner) for failing to report a residence change within ten days. Ribas had also been prosecuted earlier for the separate misdemeanor offense of failing to make his annual report within ten days of his birthday.

Core statutory framework: Ribas’s reporting duties arose under ORS 163A.020, including reporting “[w]ithin 10 days of a change of residence,” ORS 163A.020(3)(a)(B), and the crime was charged under ORS 163A.040(1)(d) (failure to report a change of residence). The charging dispute implicated ORS 135.717 (when “precise time” must be stated) and ORS 132.550(6) (allowing “on, or on or about” pleading).

Key issues: (a) Was the state bound by its trial-level factual position that Ribas changed residence after his February 15 annual report? (b) Did ORS 135.717 make the exact offense date a “material element” requiring proof that the crime occurred on the indictment’s date? (c) Was there sufficient evidence—consistent with the state’s trial theory—to survive a motion for judgment of acquittal?

2. Summary of the Opinion

The court affirmed the conviction but clarified doctrine in two important ways:

  1. The state is bound by the factual theory it chose at trial to defeat a defense motion—here, the state’s representation that it was proceeding on the theory Ribas changed residence after February 15. Even without a formal “election,” the state may not switch theories on appeal to sustain the conviction.
  2. For ORS 163A.040(1)(d), the “passage of 10 days” is material, but the exact offense date is not. ORS 135.717 does not require pleading and proving the precise date the ten-day period expired; “on or about” pleading under ORS 132.550(6) is generally sufficient absent prejudice.

Applying those holdings, the court found sufficient evidence that Ribas changed residence on February 16 (after his February 15 annual report) and did not report within ten days, meaning the offense occurred on February 26—close enough to “on or about February 25” and not shown to prejudice the defense.

3. Analysis

3.1 Precedents Cited

A. Holding the state to its trial theory (fairness; no “have it both ways”)

  • State v. Burgess, 352 Or 499, 287 P3d 1093 (2012): Central to Ribas’s “theory-locking” rule. In Burgess, the state tried the case on accomplice liability, lost on sufficiency, and then sought affirmance on principal liability. The Supreme Court rejected that as “fundamentally unfair,” emphasizing that appellate review should not surprise the defendant with a new factual/legal theory.
    Ribas extends Burgess’s fairness logic beyond the accomplice/principal context: even where the shift is not framed as a different “mode of liability,” the state is held to the factual theory it used to win key rulings below (here, to defeat a double-jeopardy-based dismissal).
  • State v. Lonergan, 344 Or 15, 176 P3d 374 (2008): Provided the court’s rhetorical and analytical anchor: the state “cannot have it both ways.” In Lonergan, the state’s trial theory about what constituted “escaping” could not be recharacterized on review.
    Ribas uses Lonergan as a general appellate-integrity principle: once the state stakes out a factual account to justify a trial ruling, it cannot later pivot to an inconsistent account to sustain the conviction.
  • State v. Hale, 335 Or 612, 75 P3d 448 (2003), cert den, 541 US 942 (2004): Cited for the proposition that when multiple factual bases could support a charged theory, defendants are entitled to know the state’s “precise theory,” and courts can require tools like elections or clarifying jury instructions. Ribas draws on Hale to emphasize due-process-like notice and fairness concerns, even where no formal election was ordered.
  • State v. Ashkins, 357 Or 642, 357 P3d 490 (2015): Clarified what a formal “election” is (required where evidence supports multiple separate occurrences). Ribas distinguishes Ashkins: the state’s constraint here is not a classic Ashkins election, but a fairness constraint against theory shifting.

B. Statutory interpretation method

  • State v. Gaines, 346 Or 160, 206 P3d 1042 (2009): The opinion uses Gaines as the interpretive framework: text, context, and legislative history.
  • PGE v. Bureau of Labor and Industries, 317 Or 606, 859 P2d 1143 (1993), and SAIF v. Walker, 330 Or 102, 996 P2d 979 (2000): Cited for the concept of “context,” including related statutes and case law construing them.
  • DeFazio v. WPPSS, 296 Or 550, 679 P2d 1316 (1984): Used to cabin reliance on later legislators’ assumptions about earlier-enacted law: later legislative “views of existing law” are not strong evidence of original meaning.

C. “Time as a material element” under ORS 135.717 and “on or about” pleading

  • State v. Long, 320 Or 361, 885 P2d 696 (1994), quoting State v. Howard, 214 Or 611, 331 P2d 1116 (1958): These cases define the ORS 135.717 exception: time is material where the conduct is criminal if done at one time but not another (e.g., selling liquor on Sunday). Ribas relies on Long/Howard to reject the Court of Appeals’ view that the crime exists only at the moment the ten-day period expires.
  • State v. Wimber, 315 Or 103, 843 P2d 424 (1992), State v. Milbradt, 305 Or 621, 756 P2d 620 (1988), and State v. Christy, 131 Or 314, 282 P 105 (1929): Reinforce the general rule that precise dates are not required unless time is a material element as the statute uses the concept.
  • State v. Yielding, 238 Or 419, 395 P2d 172 (1964), and State v. Shafer, 222 Or 230, 351 P2d 941 (1960): Illustrate how “on or about” pleading tolerates variance between alleged and proved dates, subject to prejudice. Ribas also uses Howard to emphasize that a variance becomes “fatal” only if it prejudices defense rights.
  • State v. Schriber, 185 Or 615, 205 P2d 149 (1949): Defendant invoked Schriber to argue time precision mattered. The court distinguishes Schriber: it required pleading facts (appraisal + lapse of 15 days) without which there could be no violation—analogous here only to alleging a change of residence + lapse of 10 days, not to pleading the exact calendar date of the violation.

D. Court of Appeals precedent addressed

  • State v. Ribas, 333 Or App 789, 554 P3d 280 (2024): The Supreme Court affirms the result but rejects part of the Court of Appeals’ reasoning that the state had to prove the offense occurred on the exact indictment date.
  • State v. Depeche, 242 Or App 155, 255 P3d 502 (2011): The Court of Appeals had treated failure to report as occurring “literally at midnight” on the tenth day for venue purposes. Ribas accepts that a completion moment exists for certain doctrinal purposes (e.g., limitations/commission timing), but rejects the leap that this makes the exact offense date a material pleading/proof element under ORS 135.717.

3.2 Legal Reasoning

A. The state is bound by its trial-position factual theory

Ribas’s procedural posture mattered. To defeat Ribas’s pretrial double-jeopardy-based motion to dismiss, the state affirmatively represented that it could not have charged a change-of-residence violation earlier because, as of February 15, Ribas “had not yet moved” to Lebanon. That position implicitly narrowed the state’s factual predicate: the residence change occurred after February 15.

When the Court of Appeals later upheld the conviction by relying on evidence suggesting Ribas had moved before February 15, that created the same kind of “switching lanes” condemned in Burgess and Lonergan. The Supreme Court’s move is doctrinally significant: it treats the state’s litigation stance—used to secure a favorable trial ruling—as a binding constraint for sufficiency review, even absent an Ashkins-style election. The animating principle is fairness and adversarial integrity: defendants must litigate the case actually tried, not a post hoc reconstruction.

B. ORS 135.717: “Time is material” does not mean “exact date is an element” here

The court’s statutory analysis separates two ideas that the Court of Appeals had blurred:

  1. Temporal conditions of criminality (here, the requirement that ten days elapse without reporting after a change of residence), and
  2. The need to plead/prove an exact calendar date as part of the offense.

Under ORS 163A.020(3)(a)(B) and ORS 163A.040(1)(d), the “material” temporal fact is that ten days passed after the change of residence without a report. But after the offense is committed, the omission remains criminal; it is not like Howard’s “sell liquor on Sunday” illustration where the same act is lawful on Monday. Thus, the offense is not “a crime if committed at one time but not if committed at some other time” in the ORS 135.717 sense.

Once that distinction is accepted, ORS 132.550(6) does its work: the state may allege “on or on or about” a date. The court then applies variance doctrine (Yielding, Shafer, Howard): minor variance is tolerable absent prejudice.

C. Legislative history: confirming, not transforming

The opinion’s legislative-history review serves a limiting function. The court finds no legislative intent—whether in the 1991 enactment of a reporting timeframe, the 1997 reduction to ten days, or the 2011 venue-focused amendments—to convert the exact date of offense completion into a material pleading/proof element. The 2011 legislature’s attention to Depeche is treated as addressing where to prosecute (venue), not when or how precisely to plead time.

D. Sufficiency under the state’s bound theory

Even constrained to the “moved after February 15” theory, the court identifies evidence permitting a reasonable inference that Ribas changed residence on February 16 and did not report within ten days: his statements that he was “in the process” of moving at February 15, his request to place the Lebanon address on the February 15 citation, his May 25 statement he was going home “to Lebanon,” and the May 26 change-of-residence form listing February 16 as the start date.

That evidence supports commission by midnight February 26, which is within “on or about February 25” and—crucially—Ribas did not show prejudice from the one-day variance.

3.3 Impact

A. Appellate practice: “trial theory” constraints as a fairness rule

Ribas strengthens a practical and enforceable constraint on prosecutorial flexibility: if the state affirmatively narrows its factual account to obtain a trial ruling (especially in response to defense motions like dismissal/double jeopardy), it risks being held to that account on appeal for sufficiency and affirmance purposes. This will likely affect how prosecutors litigate pretrial motions—encouraging either more careful, explicitly conditional representations or earlier clarifying steps (e.g., elections or instructions) when alternative factual theories exist.

B. Pleading/proof in failure-to-report cases: “10 days” matters, exact date usually does not

Ribas rejects the expansive reading of ORS 135.717 that would require the state to prove the precise calendar date of the offense in change-of-residence reporting cases. Prosecutors can continue to charge “on or about” dates under ORS 132.550(6), with proof centered on: (1) a change of residence, (2) elapsed ten-day window, and (3) non-reporting within that window.

For defense counsel, the key shift is strategic: challenges are more likely to succeed by showing (a) insufficient proof of the residence-change date or the lapse of ten days, or (b) prejudice from variance, rather than by insisting the indictment date itself is an element.

C. Variance and prejudice: renewed importance

Because “on or about” pleading remains valid, disputes will turn more often on whether a variance impaired the defense. Ribas underscores Howard’s prejudice requirement: defendants seeking reversal based on date mismatch must articulate how the mismatch mattered (e.g., alibi, inability to investigate, confusion about which event was charged).

D. Administrative realities: reporting complexity and housing instability

The court acknowledges (without resolving) the real-world complexity of compliance, particularly for people “in between” residences, pointing to administrative rules like OAR 257-100-0015(7)(p)(A) that allow reporting a consistent location when no permanent address exists. While not a doctrinal holding, that discussion may influence future litigation over what constitutes a “residence” change and what information is “complete and accurate” under ORS 163A.040(1)(g).

4. Complex Concepts Simplified

  • “Bound by a factual theory”: If the prosecutor tells the trial court, in substance, “our case depends on X factual timeline,” to win a motion, the prosecutor generally cannot later say, “actually, our case depends on the opposite timeline,” to save the conviction on appeal. This is grounded in fairness, notice, and the integrity of appellate review.
  • “Time is a material element” (ORS 135.717): Not every time-related fact makes time “material” in the pleading sense. Here, the state must prove ten days elapsed without reporting, but it usually need not prove the exact calendar date alleged in the indictment. Time becomes “material” in the stricter sense when the same conduct is criminal only at a special time (the “Sunday sale” example from Howard/Long).
  • “On or about”: ORS 132.550(6) permits charging flexibility. The state can allege a date approximately; proof can vary somewhat. A variance becomes reversible mainly if it prejudices the defense (e.g., undermines an alibi or creates uncertainty about the charged event).
  • Sex-offender “change of residence” reporting: The crime is not “moving”; it is failing to report the move within ten days (ORS 163A.020(3)(a)(B), ORS 163A.040(1)(d)). The “ten-day clock” is the critical factual and legal pivot.

5. Conclusion

State v. Ribas establishes two practically significant rules in Oregon criminal law: (1) the state may be held to the factual theory it chose at trial to secure rulings, even without a formal election; and (2) in sex-offender change-of-residence failure-to-report prosecutions, the state must prove the lapse of ten days without reporting, but need not prove the exact indictment date—“on or about” pleading is sufficient absent prejudice.

The decision stabilizes charging practice for ORS 163A.040(1)(d) while strengthening fairness constraints on post hoc appellate theory shifting—an important structural safeguard for adversarial litigation and meaningful appellate review.