Her Majesty's Prison Service
Her Majesty's Prison Service (HMPS) is a part of Her Majesty's Prison and Probation Service (formerly the National Offender Management Service), which is the part of Her Majesty's Government charged with managing most of the prisons within England and Wales. (Scotland and Northern Ireland have their own prison services: the Scottish Prison Service and the Northern Ireland Prison Service, respectively.)
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The CEO of HMPS, currently Dr. Jo Farrar, is the administrator of the prison service. The CEO reports to the Secretary of State for Justice and also works closely with the Prisons Minister, a junior ministerial post within the Ministry of Justice.
The statement of purpose for Her Majesty's Prison Service states that "Her Majesty's Prison Service serves the public by keeping in custody those committed by the courts. Our duty is to look after them with humanity and help them lead law abiding and useful lives in custody and after release". The Ministry of Justice's objective for prisons seeks "Effective execution of the sentences of the courts so as to reduce re-offending and protect the public".