If an order or proceeding is transferred under an interstate law to the Territory from New Zealand and the child or young person is a Maori child, in deciding what finding or order to make in a proceeding relating to the child or young person under this Act, the court must have regard to the principle that, where practicable, the relationship between the child or young person and his or her family, whanau, hapu, iwi, family groups and community group must be maintained and strengthened.