Panorama footage in one of Britain's biggest jails exposes widespread drug use and a lack of control.
Undercover reporter Joe Fenton tells his story of working in the crisis-hit prison system.
Official figures also show a record high in assaults against prison staff in England and Wales.
Michael Spurr was given the payment despite jails being branded "unacceptably violent and dangerous".
Lucy Ash asks if we should we place more trust in prisoners.