Prisoner-on-prisoner assaults at Full Sutton Prison, near Stamford Bridge, increased from 31 in 2022 to 52 in 2023, with six incidents classified as serious.
The Independent Monitoring Boards (IMB) report for last year also found that assaults on staff increased from 39 in 2022 to 67 in 2023, with five incidents classified as serious.
Thirty-five assaults on staff happened in the segregation unit.
“This reflects the high numbers of prisoners held in the unit and a spate of unrest at the end of the year,” the report says. “Overall, 11 incidents were classified as serious, compared with three in 2022.
“Despite these figures, the atmosphere within the body of the prison generally remained calm.”
Three-quarters of those who responded to the IMB’s survey reported that they had not experienced bullying or victimisation by other prisoners.
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