47 year old Nicholas Doyley left the prison on Saturday (1/10). Police are warning the public to not approach him but instead ring 999 if they see him.
Nicholas is 5ft 10 inches tall and of medium build. He has brown eyes and a scar on the left side of his head.
He is believed to frequent London.
Investigating officer Detective Constable Kate Bottomley, based at Aylesbury police station, said:
“If you have any information regarding where he may be, you can call 101 or report online via the Thames Valley Police website, quoting reference 43220441148.
“Alternatively, you can contact the independent charity Crimestoppers anonymously on 0800 555 111.”