The Statute: Utah Code § 76-5-102.4
Utah Code § 76-5-102.4 defines assault on a peace officer as committing assault — or threatening with or using a dangerous weapon — against a peace officer acting in the course of their duties, when the person knows or reasonably should know the victim is a peace officer.
The Intent Element — The Core of the Defense
Utah criminal law requires proof of a culpable mental state. For assault under § 76-5-102, the prosecution must prove the defendant acted intentionally, knowingly, or recklessly. This intent element is where the defense often lives.
Key principle: If the defendant's intent was not to assault the officer — for example, if their stated intent was self-harm, or if movements were involuntary — the intent element of assault on a peace officer may not be satisfied. The prosecution's own investigative materials sometimes contain statements that undermine their own intent theory.
Penalties
- Class A Misdemeanor: assault causing substantial bodily injury — up to 364 days jail, up to $2,500 fine
- 3rd Degree Felony: assault with a dangerous weapon or causing serious bodily injury — up to 5 years prison
- 2nd Degree Felony: aggravated assault on a peace officer — up to 15 years prison
Defense Strategies
- Negating intent through evidence of mental state, emotional disturbance, or crisis
- Self-defense analysis under Utah Code § 76-2-402
- Unlawful arrest — whether the officer was acting within lawful authority
- Mental health, intoxication, or diminished capacity affecting culpable mental state
- Body camera and Force Investigation Team report contradictions of the arrest narrative
Call (801) 627-1110 for a free case assessment. Assault on a peace officer requires experienced defense counsel immediately.