Police have launched an investigation after the prisoner ombudsman said a prison officer planted a note containing personal details about the governor of Maghaberry jail.
The note was found in the cell of a dissident republican suspect in December 2009. The governor at the time, Steve Rodford, resigned a short time later because of fears he was under threat.
Pauline McCabe has completed a 15 month investigation into the incident. She concluded the note was hidden in the cell by a member of staff opposed to planned reforms at the prison.