Prior to this change, healthcare in some secure accommodation was commissioned by other government bodies: NOMS for some contracted prisons, the UK Borders Agency for Immigration Removal Centres, the Youth Justice Board for Secure Children’s Homes and Secure Training Centres and Police Authorities for Police Custody Suites and Sexual Assault Referral Centres). All prison and secure estate healthcare is now NHS England-commissioned, although the transfer of healthcare commissioning in police custody and in Secure Children’s Homes with Welfare-Only Beds to NHS England is still in progress. As of 5 September 2014, there were 85,385 prisoners in England and Wales (male and female, all ages including young offenders aged 15-17 held in Young Offender Institutions). The Department of Health has not surveyed the incidence of prisoner mental health but considers the Office of National Statistics (ONS) 1998 survey Psychiatric Morbidity among Prisoners in England and Wales to be the most reliable data currently available.