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
Prison riot workers. In the late 20th century, the analyses and conclusions presented to account for prison disturbances and riots began to shift and change based upon new studies and research. Initially, prison riots were considered irrational actions on the behalf of the prisoners. Nevertheless, there has been a shift in the form of explanation as external conditions like overcrowding are promoted by authorities as possible sources of causation. The following is a list of prison riots which have been depicted in various forms of media, including books, film, and television. Prison riot A prison riot is an act of concerted defiance