Can Utah courts exclude evidence of a victim's prior sexual abuse? State v. Steffen Explained

In State v. Steffen, the Utah Court of Appeals addressed when courts may exclude evidence of a victim’s prior sexual abuse under Rule 412 of the Utah Rules of Evidence. The case provides important guidance on the constitutional exception to Rule 412 and the standards governing discovery in criminal cases.

Background and Facts

Jordan Steffen was charged with multiple counts of child sexual abuse against his girlfriend’s eleven-year-old daughter, A.Z. Steffen sought to introduce evidence that A.Z. had previously been sexually abused by her grandfather, arguing this evidence was necessary to rebut the sexual innocence inference—the assumption that a young child could not have sexual knowledge unless the charged abuse occurred. The district court excluded this evidence under Rule 412, finding it had minimal probative value because the grandfather’s conduct was significantly less egregious than the acts Steffen was accused of committing.

Key Legal Issues

The court addressed three main issues: (1) whether excluding the prior abuse evidence violated Steffen’s Sixth Amendment right to present a defense; (2) whether the district court erred in its discovery rulings regarding work product privilege; and (3) whether the court abused its discretion in denying Steffen’s motion for mistrial after the State accidentally introduced evidence of the victim’s self-harm.

Court’s Analysis and Holding

The Court of Appeals affirmed all rulings. Regarding Rule 412, the court applied the standard from State v. Thornton, holding that the constitutional exception applies only when excluding evidence would be “arbitrary or disproportionate” and would “significantly undermine fundamental elements” of the defendant’s defense. The court found the prior abuse evidence was not essential to the defense because: (1) the State did not rely on the sexual innocence inference at trial; (2) Steffen had other evidence to explain A.Z.’s sexual knowledge; and (3) the prior abuse had limited probative value due to its dissimilarity from the charged conduct.

Practice Implications

This decision clarifies that relevance alone is insufficient to trigger Rule 412’s constitutional exception. Practitioners must demonstrate that excluded evidence is essential to their defense strategy, not merely helpful. The court also emphasized that work product waivers are narrowly construed and that compliance with court orders does not constitute voluntary waiver of attorney-client or work product privileges.