National Preventive Mechanism Ninth Annual Report 2017–18 PACE PSNI PPO RQIA SHRC SPT SCH STC YJB YOI 50 Police and Criminal Evidence Act 1984 Police Service of Northern Ireland Prisons and Probation Ombudsman Regulation and Quality Improvement Authority Scottish Human Rights Commission United Nations Subcommittee on Prevention of Torture and Other Cruel, Inhuman or Degrading Treatment or Punishment Secure children’s home Secure training centre Youth Justice Board Young offender institution