A former Multnomah County Sheriff’s Office (MCSO) corrections deputy is facing multiple criminal charges, including official misconduct and supplying contraband, following a months-long investigation into alleged conduct that occurred both on and off duty. 

In January 2024, MCSO detectives launched a criminal investigation into 43-year old Devona Susanne Preble, when she was found to be in the company of a man wanted by authorities in a separate criminal case. At the time of the investigation, Preble had already been terminated by the Sheriff’s Office.

Detectives suspected the two were in a domestic relationship. Using recorded jail phone calls involving the man and Preble, detectives confirmed their relationship began in early 2023, while the man was in custody at the Multnomah County Detention Center and Preble was employed as a corrections deputy.

Detectives learned that in May 2023, Portland Police officers responded to a domestic disturbance at Preble’s residence. Portland Police officers reported to the Sheriff’s Office that Preble attempted to interfere with officers by concealing the man’s identity. Once he was identified, Preble admitted to officers that she was an MCSO corrections deputy.

Based on her conduct, the Multnomah County Sheriff’s Office terminated Preble. Preble was considered a probationary employee; she was within her first 12-months of work.

Further investigation, after her termination revealed that, in 2023, Preble brought drugs into the jail for the man while he was in custody.

On Tuesday, June 17, 2025, with assistance from the Portland Police Bureau’s Special Emergency Reaction Team (SERT), MCSO deputies arrested Preble. She was booked into the Multnomah County Detention Center on the following charges:

• Supplying contraband, one count
• Conspiracy to supply contraband, one count
• Hindering prosecution, one count
• Official misconduct in the first degree, three counts
• Official misconduct in the second degree, three counts

The Multnomah County Sheriff’s Office acknowledges the Portland Police Bureau Narcotics and Organized Crime (NOC) team and SERT for their vital assistance in this investigation and arrest of Preble.

“Our deputies take an oath to uphold the law and maintain the highest ethical standards,” said Multnomah County Sheriff Nicole Morrisey O’Donnell. “The actions of this former employee violated that oath and compromised the integrity of our agency. This case underscores our commitment to accountability and public trust.”

Preble is scheduled to be arraigned on Friday, June 20, at 9 a.m. in the Multnomah County Justice Center Courtroom #3.

No further comment will be provided at this time.