1990 Strangeways Prison riot April, and 40 prisoners held a prison officer hostage for twenty-four hours after taking over a hall at HM Prison Shotts on 10 April. On 12 April, two teenage remand prisoners at HM Prison Swansea barricaded themselves into their cell for seventeen hours, and on 22 April between 80 and 100 remand prisoners staged an eighteen-hour rooftop protest at HM Prison Ashfield in Pucklechurch. On 2 April newspapers reported a weekend of "anti-authority violence", as in addition to the Strangeways riot the Poll Tax Riot had occurred in London on 31 March. Reports of the violence at Strangeways included kangaroo
Fremantle Prison riot Post Trauma Stress Disorder. In the aftermath of the riot, there was extensive media attention on Fremantle Prison, and investigative journalists uncovered that warnings had been given to the prison authorities. The government hastily initiated an enquiry into the incident, and a report was completed within six weeks. The report suggested that little evidence supported the escape plan theory common in the media, but that the riot was largely the result of an incident of that morning involving the mistreatment of a prisoner and his subsequent release into three division yard. A trial involving thirty-three prisoners charged over the riot