A Wisconsin nurse has been sentenced to prison after authorities say she crossed professional boundaries with a drug-court participant — and then falsely accused him of sexual assault when their relationship came to light.

Melissa Knutson was convicted of misconduct in public office and obstructing an officer following a 2022 investigation tied to her work with the Monroe County Drug Court.

Prosecutors said Knutson, who was responsible for administering Vivitrol — a medication used to treat substance use disorders — engaged in a sexual relationship with a man enrolled in the court’s supervised program. Participants in drug court are often under strict oversight and rely heavily on court staff for compliance and treatment support.

When officials began examining her conduct, Knutson reported that the patient had sexually assaulted her, according to court records.

Texts Tell a Different Story

Authorities said the nurse initially claimed she stayed silent about the alleged assault because she feared retaliation from the man. But investigators later uncovered text messages that painted a different picture.

According to prosecutors, the messages suggested Knutson had initiated the relationship and even discussed denying everything if the two were discovered. The texts ultimately undermined her claims and prompted further scrutiny.

She later admitted to lying about the assault in an attempt to avoid consequences, officials said.

The case sparked outrage in the local community, particularly because of the vulnerable position of the patient involved. Drug court participants often work closely with treatment providers and are subject to strict court conditions.

“Deep and Significant” Harm

Monroe County District Attorney Kevin Croninger described the situation as a serious breach of trust.

“The harm caused was deep and significant,” Croninger said in a statement. “Not only was there a violation of the trust between a nurse and a patient, but it was compounded by a false allegation of sexual assault.”

He emphasized that the case was especially troubling because the patient was enrolled in a court-supervised recovery program, making the power dynamic particularly sensitive.

Sentencing

Knutson was sentenced to 18 months in prison, followed by two years of extended supervision. The charges of misconduct in public office and obstructing an officer reflect both the inappropriate relationship and the false report made to authorities.

The case serves as a stark reminder of the ethical responsibilities placed on medical professionals — particularly those working with individuals in recovery programs — and the serious consequences that can follow when those boundaries are crossed.

For the drug court participant at the center of the case, what began as a confidential treatment relationship ultimately became a legal ordeal that ended in prison time for the nurse entrusted with his care.