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
HM Prison Birmingham Staff shortages were also problematic influencing efficiency, morale, and wellbeing. Jobs for prison officers at Birmingham Prison were advertised with a starting salary of just under £10 an hour. There was reportedly a buildup of frustration over prison conditions prior to the riot. Low staff numbers, poor healthcare and nutrition were cited as factors. Also being on, 'lockdown' in their cells all day was cited as a major contributing factor to the disturbance. On 16 December 2016, a prison guard was reportedly "rushed" by inmates leading to a rapid escalation of what prison officials described as "trouble". According to a