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 was staged as a diversion by twelve men including Brenden Abbott, to assist a mass escape from the prison. During the two weeks prior to the riot they collected 3 litres of fuel from lawnmowers, which they managed to conceal in their drink bottles. Fremantle Prison was built using convict labour during the 1850s, based on the design of Pentonville Gaol, and was used as the maximum security prison for male offenders in Western Australia. During the 1890s the size of the cells were doubled by removing an adjoining wall between two cells. The conditions in the cells remained unchanged