10th Cir.

United States v. Mandrell

April 20, 2026 ·25-7046 ·Panel Decision ·Nancy L. Moritz · By James Taylor

The Tenth Circuit affirmed a district court's revocation of supervised release after a defendant violated a halfway house policy by possessing sexually explicit material on his phone. The appellate court held that the probation officer's testimony provided sufficient evidence to support the finding of a violation by a preponderance of the evidence.

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Background

Thompson Mandrell pleaded guilty to a federal crime in two thousand and seventeen and was sentenced to prison followed by a term of supervised release. After his release, he moved into a halfway house, which required him to follow all its policies as a condition of his supervised release. One policy prohibited residents from possessing sexually explicit material on the premises. A probation officer using monitoring software viewed approximately eight hundred to one thousand images on Mandrell’s phone depicting cartoon depictions of minors engaging in sexually explicit conduct. The district court found Mandrell violated the supervised release condition and revoked his release.

The court’s reasoning

The Tenth Circuit reviewed the revocation for an abuse of discretion, examining whether the district court committed legal error or relied on clearly erroneous factual findings. The court held that the probation officer’s testimony describing the images was sufficient to support the finding of a violation, even without the physical admission of the images. The court rejected arguments that the government failed to prove Mandrell personally downloaded the images or that the monitoring software was unreliable, noting that speculation does not overcome a preponderance of the evidence standard. The court also found no legal error in the district court’s failure to make a separate finding that the images were sexually explicit, as that finding was implicit in the violation determination and Mandrell had not contested the nature of the images at the hearing.

Reasonable people can make reasonable findings by the preponderance of the evidence despite our living in an imperfect world.

United States v. Williams, 106 F.4th 1040, 1049 (10th Cir. 2024)

What it means going forward

The decision reinforces that probation officers’ testimony regarding the content of digital devices can suffice to prove supervised release violations, even when the physical evidence is not admitted and the defendant challenges the source of the content.

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