 be given to factors that will make the young person particularly vulnerable if sentenced to custody and should be included in the report. Care leavers in custody 6.38. Regulation 3(2) of the Care Leavers Regulations prescribes a further category of relevant child for the purposes of section 23A(3) of the 1989 Act – any child aged 16 or 17 who: (a) at the time when he attains the age of 16 is detained or in hospital; and (b) immediately before being detained or admitted to hospital had 54 been looked after by a local authority for a period of at least 13 weeks, which began after he reached the age of 14, is a “relevant child” entitled to continuing leaving care support. 6.39. For the purposes of this regulation, “detained” means detained in a secure training centre, secure children’s home, young offender institution or any other institution pursuant to an order of a court19. 6.40. Young people who have served a custodial sentence will be subject to supervision following their release. For young people under the age of 18 or those who are completing a Detention and Training Order (DTO), this supervision will be undertaken by the YOT. For those over 18 who have served a Section 90, 91, 226 or 228 sentence for a serious crime20, supervision will be undertaken by the Probation Service. The YOT or the Probation Service will be concerned to ensure that these young people do not re-offend. In trying to achieve this aim, they should not only address young people’s offending behaviour and its consequences, but also their development into capable resilient and responsible adults. 6.41. Where a relevant or former relevant child enters custody, pathway planning must continue. The young person must be visited on a regular basis and it is good practice for the first visit to take pla