State of Idaho v. Dustyn Keith Vaughn

IN THE COURT OF APPEALS OF THE STATE OF IDAHO

Docket No. 51553

STATE OF IDAHO, )
) Filed: April 30, 2026
Plaintiff-Respondent, )
) Melanie Gagnepain, Clerk
v. )
) THIS IS AN UNPUBLISHED
DUSTYN KEITH VAUGHN, ) OPINION AND SHALL NOT
) BE CITED AS AUTHORITY
Defendant-Appellant. )
)

Appeal from the District Court of the Fourth Judicial District, State of Idaho, Boise
County. Hon. Theodore Fleming, District Judge.

Judgment of conviction for assault on a law enforcement officer and resisting and
obstructing an officer, affirmed.

Erik R. Lehtinen, State Appellate Public Defender; Jenny C. Swinford, Deputy
Appellate Public Defender, Boise, for appellant.

Hon. Raúl R. Labrador, Attorney General; Mark W. Olson, Deputy Attorney
General, Boise, for respondent.
________________________________________________
TRIBE, Chief Judge
Dustyn Keith Vaughn appeals from his judgment of conviction for assault on a law
enforcement officer and resisting and obstructing an officer. We affirm.
I.
FACTUAL AND PROCEDURAL BACKGROUND
Vaughn was charged with assault on a law enforcement officer (Idaho Code
§ 18-915(2)(b)) and resisting and obstructing an officer (I.C. § 18-705), following an encounter
with parole officers at his property. For the assault charge, the State alleged Vaughn felt for his
pockets, refused to follow commands to stop, and then charged aggressively at his parole
officer, Officer Gibson. For the resisting and obstructing charge, the State alleged Vaughn refused
to follow the commands of two parole officers, including Officer Gibson.

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Before trial, the State filed a notice of intent to produce evidence under Idaho Rule of
Evidence 404(b). The State sought to introduce evidence, in part, that: (1) Vaughn was under
parole supervision for a domestic violence conviction; and (2) Officer Gibson went to Vaughn’s
property to arrest him. At the hearing on the State’s notice, Vaughn did not object to evidence that
he was on parole, that he knew Officer Gibson as Vaughn’s parole officer, that Vaughn was
noncompliant with the terms of his parole, or that he was specifically noncompliant for “moving
[without permission].” Vaughn objected to evidence regarding any other alleged parole violations.
The district court excluded admission at trial of any reference to Vaughn being on parole for a
domestic violence conviction or any other felony offense and any reference to the specific nature
of his parole violations.
The case proceeded to a jury trial. During the State’s direct examination, Officer Gibson
testified about Vaughn’s repeated failure to comply with commands to remove his hands from his
pockets and explained why that conduct caused Officer Gibson concern. When asked to elaborate,
Officer Gibson testified, “I didn’t know what was in [Vaughn’s] pockets. He was noncompliant
at this point. He already had a list of other violations, so this was just one thing added to the whole
puzzle of everything that I found to be extremely concerning to me.” Vaughn objected to Officer
Gibson’s testimony. The district court overruled the objection. The jury found Vaughn guilty of
both charges. Vaughn appeals.
II.
STANDARD OF REVIEW
A trial court’s determination under I.R.E. 403 will not be disturbed on appeal unless it is
shown to be an abuse of discretion. State v. Enno, 119 Idaho 392, 406, 807 P.2d 610, 624 (1991);
State v. Clark, 115 Idaho 1056, 1059, 772 P.2d 263, 266 (Ct. App. 1989).
III.
ANALYSIS
Vaughn argues that the district court abused its discretion by overruling his objection to
Officer Gibson’s testimony referencing Vaughn’s “list of other violations.” Vaughn contends that
the testimony was minimally probative and unfairly prejudicial because it suggested prior parole
misconduct unrelated to the charged offenses. The State responds that the testimony was relevant
and its probative value was not substantially outweighed by the danger of unfair prejudice.

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A. Admission of the Challenged Testimony
Vaughn does not dispute that Officer Gibson’s testimony was relevant but, instead,
contends that its probative value was minimal and substantially outweighed by the danger of unfair
prejudice under I.R.E. 403. The State responds that the testimony, which explained the
circumstances of the encounter and Officer Gibson’s assessment of risk, was properly admitted
and that the district court carefully limited the testimony to avoid unfair prejudice.
1. Probative value
Evidence that is relevant to a material and disputed issue concerning the crime charged is
generally admissible. State v. Garcia, 166 Idaho 661, 670-71, 462 P.3d 1125, 1134-35 (2020).
Evidence is relevant if it has any tendency to make the existence of any fact that is of consequence
to the determination of the action more probable or less probable than it would be without the
evidence. I.R.E. 401; Garcia, 166 Idaho at 670, 462 P.3d at 1134. Whether a fact is of
consequence or material is determined by its relationship to the legal theories presented by the
parties. State v. Johnson, 148 Idaho 664, 671, 227 P.3d 918, 925 (2010).
Here, although Vaughn does not contest relevance, the degree of probative value remains
relevant to the I.R.E. 403 balancing analysis. The State’s theory of the case depended, in part, on
explaining why Officer Gibson perceived that there was an escalating risk and continued issuing
commands as the encounter unfolded, including during her attempt to disengage. Vaughn’s theory,
in contrast, was that Officer Gibson’s fear was not based on the charged conduct itself but, instead,
based on prior misconduct or parole-related violations. Within this framework, the challenged
testimony had probative value because it helped the jury understand the context in which Officer
Gibson evaluated Vaughn’s conduct and the assessed risk during the encounter.
Specifically, the testimony explained why Officer Gibson went to Vaughn’s residence, why
Officer Gibson confronted Vaughn regarding parole compliance, and why Officer Gibson
perceived the situation escalating as Vaughn repeatedly refused commands and placed his hands
in his pockets. Although the testimony did not independently establish the fear element of assault,
it was not required to do so in isolation to still possess probative value. Rather, the testimony
provided context for Officer Gibson’s contemporaneous decision-making and perception of risk
as the encounter unfolded.

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2. Unfair prejudice
Vaughn argues that the testimony was unfairly prejudicial because it invited the jury to
speculate about unspecified misconduct, suggesting that he was dangerous and deserving of
incarceration. Vaughn relies on State v. Alsanea, 138 Idaho 733, 69 P.3d 153 (Ct. App. 2003),
arguing that prior misconduct cannot be used to establish an assault victim’s fear. The State
responds that Alsanea is distinguishable because Officer Gibson did not testify about prior violent
conduct and her testimony was not used to establish fear independent of Vaughn’s conduct during
the charged incident.
Idaho Rule of Evidence 403 permits the exclusion of relevant evidence only where its
probative value is substantially outweighed by the danger of unfair prejudice. Evidence is not
unfairly prejudicial merely because it is detrimental to a party’s case; rather, unfair prejudice refers
to an undue tendency to suggest a decision on an improper basis. See State v. Floyd, 125 Idaho
651, 654, 873 P.2d 905, 908 (Ct. App. 1994).
The core concern Vaughn raises is that the jury would infer from the phrase, “list of other
violations,” that he had engaged in prior serious or violent misconduct and the jury would then use
that inference to justify Officer Gibson’s fear or Vaughn’s guilt. However, the district court took
meaningful steps to limit this risk. The jury was not informed of the nature of the violations,
whether they were criminal or technical, or whether they involved violence. Nor was the jury
informed of Vaughn’s underlying offense or the specific parole conditions he allegedly violated.
Without this information, the jury lacked a factual basis from which to infer that the violations
were violent or predictive of assaultive behavior. This significantly constrained the improper
inference Vaughn identifies and limited the risk that the jury would rely on improper reasoning
rather than evidence of Vaughn’s conduct during the encounter.
Vaughn’s reliance on Alsanea is misplaced. In Alsanea, the district court admitted
evidence of specific prior violent acts known to the officers, and the State relied on that evidence
to establish the officers’ fear independent of the defendant’s conduct during the charged incident.
See Alsanea, 138 Idaho at 739-40, 69 P.3d at 159-60. This Court held that such evidence was
improperly admitted because the assault statute requires fear to arise from the defendant’s conduct
during the encounter, not from prior acts. See id.

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Here, unlike Alsanea, Officer Gibson did not testify about Vaughn’s prior violent conduct
or describe the nature of Vaughn’s violations. More importantly, Officer Gibson’s testimony did
not suggest that her fear arose from knowledge of prior misconduct. Instead, the record reflects
that her fear was grounded in Vaughn’s contemporaneous conduct, including his refusal to comply
with demands, his repeated movements toward his pockets, and his pursuit of Officer Gibson when
she attempted to disengage. The reference to other violations served to explain why the encounter
occurred and why Officer Gibson perceived the situation as escalating, not as an independent basis
for fear.
3. Idaho Rule of Evidence 403
Vaughn argues that any probative value of Officer Gibson’s testimony was substantially
outweighed by the danger of unfair prejudice because the jury could speculate about the nature
and severity of the violations and conclude that he was dangerous. The State responds that the
district court reasonably balanced the probative value against the danger of unfair prejudice by
allowing only nonspecific testimony and excluding more prejudicial details.
Even relevant evidence may be excluded if its probative value is substantially outweighed
by the danger of unfair prejudice. State v. McCabe, 174 Idaho 653, 655, 559 P.3d 331, 333 (Ct.
App. 2024); see I.R.E. 403. The focus of I.R.E. 403 is on unfair prejudice, meaning an undue
tendency to suggest the jury’s decision on an improper basis, such as emotion or illegitimate
reasoning. See State v. Rhoades, 119 Idaho 594, 604, 809 P.2d 455, 465 (1991). Evidence is not
unfairly prejudicial merely because it is damaging to the defendant’s case. State v. Fordyce, 151
Idaho 868, 870, 264 P.3d 975, 977 (Ct. App. 2011).
Here, the district court permitted only a brief, nonspecific reference to a “list of other
violations” and excluded any evidence describing the nature or severity of those violations. This
limitation preserved the testimony’s probative value in explaining the circumstances of the
encounter and Officer Gibson’s assessment of risk, while significantly reducing the likelihood that
the jury would engage in speculation or improper propensity reasoning. By drawing this line, the
district court reasonably balanced the probative value against the danger of unfair prejudice.
Accordingly, the district court did not abuse its discretion in admitting the challenged testimony.

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IV.
CONCLUSION
The district court did not abuse its discretion by admitting Officer Gibson’s testimony
referencing Vaughn’s parole noncompliance and unspecified violations. Accordingly, Vaughn’s
judgment of conviction for assault on a law enforcement officer and resisting and obstructing an
officer is affirmed.
Judge HUSKEY and Judge Pro Tem MELANSON, CONCUR.

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