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
Kaohsiung Prison riot is the first ever prison riot with officials held hostage in the history of Taiwan. A subsequent investigation found that the head prison warden was unaware of the hostage crisis for 30 minutes after it began. On 26 February, the Ministry of Justice announced that 23 prison officials had been reprimanded for their handling of the incident. The head warden was demoted and given a demerit. Demerits were also served to two of his top aides, and to the head of the Agency of Corrections. By August 2016, the head warden, deputy warden and head guard were no longer in