what is the highest security prison in the uk
HM Prison Wakefield Her Majesty's Prison Wakefield is a Category A men's prison, located in Wakefield, West Yorkshire, England. The prison is operated by Her Majesty's Prison Service, and is the largest high-security prison in the United Kingdom (and western Europe). The prison has been nicknamed the "Monster Mansion" due to the large number of high-profile, high-risk sex offenders and murderers held there.[1][2]