(1)  Leave which is in force immediately before the commencement day granted under section 29A(4) of the Principal Act is taken to be leave of absence granted under section 130(1) of the Youth Justice Act 1997 .

(2)  If leave granted under section 29A(4) of the Principal Act is revoked under section 29A(5) of that Act but the person has not returned to the institution or detention centre from which he or she was granted the leave of absence, that person is taken to be absent from a detention centre without lawful authority for the purposes of the Youth Justice Act 1997 .