State v. Perrin — affirmed waiver of deadly-weapon prison time under the mental health sentencing alternative

Case
State of Washington v. Scott Joseph Perrin
Court
Washington Supreme Court
Judge
GONZÁLEZ (appointment info not available)
Date Decided
July 30, 2026
Docket No.
104816-5
Topics
Criminal Sentencing, Mental Health, Deadly Weapon Enhancement, Statutory Interpretation
Source
Read the full opinion

Background

Scott Perrin left harassing messages for a woman, destroyed Troy Brisby’s bicycle, and assaulted Brisby with a sword. A jury found Perrin guilty of second degree assault with a deadly weapon, felony harassment, and third degree theft.

Perrin requested Washington’s mental health sentencing alternative for his felony convictions. The trial court granted the request, imposed 36 months of community custody, and did not impose confinement for the deadly weapon enhancement. The Court of Appeals affirmed after finding the Sentencing Reform Act ambiguous and applying the rule of lenity. The State obtained Washington Supreme Court review on whether the enhancement required confinement.

The Court’s Holding

The Washington Supreme Court unanimously affirmed. It held that once a deadly weapon enhancement is determined, the enhancement becomes part of the defendant’s standard-range sentence. Because the mental health sentencing alternative directs the court to waive imposition of the standard-range sentence, the trial court properly waived the enhancement along with the rest of Perrin’s standard-range sentence.

The court rejected the State’s argument that statutory language making deadly weapon enhancements mandatory “notwithstanding any other provision of law” required confinement in this setting. Reading the related statutes together, the court concluded that they can be harmonized by treating the enhancement as part of the standard-range sentence subject to waiver. The court also found that this interpretation accords with the alternative’s rehabilitative purpose and the broader purposes of the Sentencing Reform Act.

The court added that even if the statutory scheme were ambiguous, the rule of lenity would require resolving that ambiguity in Perrin’s favor.

Key Takeaways

  • A deadly weapon enhancement, once determined, is part of the standard-range sentence under Washington’s Sentencing Reform Act.
  • When a court imposes the statutory mental health sentencing alternative, it may waive confinement attributable to a deadly weapon enhancement.
  • The enhancement statute’s mandatory and “notwithstanding” language does not override the waiver required by the mental health sentencing alternative.

Why It Matters

The decision clarifies that eligible defendants receiving Washington’s mental health sentencing alternative need not first serve confinement solely because their standard-range sentence includes a deadly weapon enhancement. Sentencing courts may implement the treatment-focused alternative without adding enhancement-related prison time.

The ruling also reinforces the court’s approach of reading sentencing enhancements as components of the standard range and harmonizing them with later-enacted sentencing alternatives. Any remaining ambiguity in penal sentencing provisions must be construed in the defendant’s favor.

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