Power of court to make detention order in certain cases

If, (a) a detention order is made but is not to take effect immediately; or (b) at a time specified for the order to take effect the child is unfit by reason of any disease or (Children’s Reformation) 13 other physical defect or injury to be sent to an the court may make an order committing him either to the custody of a relative or other fit person or to be detained in a public hospital and he shall be so kept in custody or be detained accordingly until he is sent to the institution in pursuance of the detention order.