Where a magistrate commits a fugitive to prison under section 16, the magistrate shall—
(a) inform the fugitive on so committing him or her that he or she will not be surrendered until after the expiration of 15 days and that, within that time, he or she may under law apply for leave to appeal or apply for a writ of habeas corpus; and
(b) transmit within 7 days to the Attorney General a certificate of the committal together with a copy of all the evidence produced before the magistrate and not already sent to the Attorney General and append thereto such report on the case as the magistrate thinks fit.