91 (1) The provincial director of a province may, subject to any terms or conditions that he or she considers desirable, authorize, for a young person committed to a youth custody facility in the province further to an order under paragraph 76(1)(a) (placement when subject to adult sentence) or a youth sentence imposed under paragraph 42(2)(n), (o), (q) or (r),
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(a) a reintegration leave from the youth custody facility for a period not exceeding thirty days if, in the opinion of the provincial director, it is necessary or desirable that the young person be absent, with or without escort, for medical, compassionate or humanitarian reasons or for the purpose of rehabilitating the young person or reintegrating the young person into the community; or