When can Utah courts disregard witness testimony as inherently improbable? State v. Robbins Explained

In State v. Robbins, the Utah Supreme Court clarified the scope of the inherent improbability doctrine, providing important guidance on when trial courts may disregard witness testimony despite jury verdicts.

Background and Facts

Ryan Robbins was convicted of aggravated sexual abuse of his ten-year-old stepdaughter Taylor based solely on her testimony. The case arose amid contentious custody proceedings between Taylor’s biological father and Robbins. Taylor’s allegations contained numerous inconsistencies: she changed her age when the abuse allegedly occurred from nine to seven, altered descriptions of her clothing, and provided contradictory accounts of physical abuse. Two separate DCFS investigations had previously found no merit to abuse allegations. Taylor first disclosed the sexual abuse to her counselor over three years after it allegedly occurred, following her mother’s separation from Robbins.

Key Legal Issues

The central issue was whether the court of appeals properly interpreted the inherent improbability doctrine—specifically, when courts may disregard witness testimony as inherently improbable when considering motions to arrest judgment. The court of appeals had applied a narrow standard requiring testimony to be “impossible” rather than merely incredible and relating to the “core of the offense.”

Court’s Analysis and Holding

The Utah Supreme Court rejected the court of appeals’ restrictive interpretation, holding that trial courts may disregard witness testimony when it is “incredibly dubious” and “apparently false.” The Court established a two-part test: (1) there must be material inconsistencies in the testimony, and (2) there must be no other circumstantial or direct evidence of defendant’s guilt. The Court emphasized that this discretion should only be exercised when “no reasonable jury could find the defendant guilty beyond a reasonable doubt.”

Practice Implications

This decision provides a meaningful standard for challenging sufficiency of evidence based on incredible witness testimony. Defense counsel should carefully document all material inconsistencies in witness testimony and demonstrate the absence of corroborating evidence. Trial courts now have clearer guidance on when they may exercise discretion to disregard testimony that appears fabricated or coached, particularly in cases involving custody disputes or other circumstances suggesting potential bias.