Overview
- Oksana Antanaitiene pleaded guilty to misconduct in a public office on Tuesday and was released on bail ahead of her sentencing hearing on October 28.
- Police say she admitted forming an inappropriate sexual relationship with a serving prisoner after she was found in a locked office at HMP Chelmsford in August 2025.
- Investigators recovered explicit photographs and a concealed USB from the inmate’s cell on October 22, 2025, and evidence shows she sent images and supplied files and other prohibited items.
- Antanaitiene had completed training on prison safety and corruption prevention, which prosecutors cite when judging the breach of professional standards and oversight failures.
- The Prison Investigations Team warned the conduct undermined institutional integrity and could have compromised safety, a development likely to prompt tighter controls on staff access and contraband transfer.