A 61-year-old man has been convicted of assault after he held the governor of HMP Woodhill prison in a headlock.
Charles Bronson pleaded guilty to assault occasioning actual bodily harm at Amersham Crown Court and was sentenced to two years imprisonment today.
Bronson held Alan Parkins so tight he was unable to breathe during the attack shortly before 8am on Friday, February 28.
He also struck him several times on the head.
Several prison officers came to the defence of the governor and Bronson was restrained.
Mr Parkins suffered bruising to his shoulder and arm, abrasions to his face and a nose bleed.
Investigating officer Det Sgt James Shepherd from Milton Keynes Force CID said: “Police were immediately informed following this incident in February and conducted a full interview.
“Bronson declined to make any comment in interviews, stating only that he would save his comments for a jury.
“We are pleased he decided to plead guilty today.”