A "shabby" young offenders unit has been named "the most violent in the UK" after a series of horrific and brutal incidents.
Inspectors revealed a glimpse inside the most violent young offenders institution in the UK where one inmate stamped on a guard's head.
HMP Brinsford was named the worst of its kind last year when inspectors turned up unannounced for a six-day visit.
Reports revealed how prisoners blast music, etch graffiti on the walls and attack each other at the prison.
More than 450 inmates, mostly men under 30, are sent to the jail while on remand or to serve sentences of less than four years.
One inmate Cam'ron Dunn stamped on a prison officer's head five times at the prison leaving him in need of 10 stitches, BirminghamLive reports.
The 19-year-old killer was on remand for murder when he punched the guard in a "completely unprovoked attack" over dirty laundry.
He then stamped on the guard's head and chucked a chair at a second officer, it was said.
CCTV footage, released by Staffordshire Police, captured the savage attack inside the prison near Featherstone, West Yorkshire.
HM Inspectorate of Prisons discovered attacks between prisoners was higher than at any other young offender institute in the county during the visit last August.
It found 217 prisoner-on-prisoner assaults which was a "concerning" increase on the previous year.
Fights had dropped since the last inspection in 2017, with 112 recorded in the 12 months before the most recent visit. Assaults on staff were also lower than at other institutions, with 31 incidents taking place.
Chief inspector of prisons Charlie Taylor said: "Though violence had reduced since our last inspection, levels of assaults between prisoners were higher than at any of the comparator prisons.
"There had been a homicide since the previous inspection and 217 prisoner-on-prisoner assaults over the past year, which was higher than at the time of the previous inspection, and the highest among comparable prisons, which was concerning."
Prisoners were held in "shabby and austere: cells, with basic items such as curtains and chairs missing."
Cells on the segregation unit were also dirty with large amounts of graffiti.
While prisoners got just 30 minutes' exercise and showers each day, meaning some inmates were locked in their cells for 23 hours.
It was "depressing" that many young men were "wiling away their time sleeping or watching daytime television", the inspector said.
The report read: "The attractive gardens, largely closed to prisoners, and the large open site belied a prison that faced some serious challenges in providing adequate care, education, training and rehabilitation and creating an environment that was safe and supportive to an often-troubled group of prisoners.
"Much of the accommodation was in poor condition with many prisoners living in shabby cells, of which some had inadequate furniture and graffiti on the walls.
"The showers needed refurbishment and the communal areas were tatty and uninspiring.
"Even parts of the prison that had been recently redecorated had begun to deteriorate. Officers tended to congregate in offices away from the wings, meaning prisoners were often left unsupervised."
The report told how inspectors saw poor behaviour going unchallenged by staff whose "low morale seemed to have affected their motivation."
Limited supervision of inmates meant prisoners would congregate on wings, with staff unable to account accurately for the whereabouts of prisoners during the day, it added.
"Behaviour management continued to be undermined by a lack of supervision and consistent challenge of poor prisoner behaviour by staff," it continued.
"During the inspection, we saw several examples of unacceptable behaviour such as playing music too loudly, swearing or vaping in areas where this was not allowed, going unchallenged by staff, and groups of prisoners left to congregate unsupervised on the wings."
The Prison Service confirmed it was addressing concerns raised in the report.
A spokesperson said: "HMP Brinsford has taken steps to address the concerns raised by this report, including increasing time out of cells, recruiting more prison officers to boost morale, and reviewing cleaning schedules to improve conditions.
"More widely across the estate, we’ve secured an extra £315 million to invest in prison maintenance and carry out major refurbishments."
Dunn was jailed for life in July, with a minimum term of 20 years, for murdering 17-year-old student Derlano Samuels in the Black Country.
He was handed a total of four years and three months for the prison attack last June, which will run concurrently to his life sentence.
The defendant admitted wounding with intent and assaulting an emergency worker in relation to the incident at HMP Brinsford.
