The personal representatives or relatives of any deceased person whose remains are interred in the land or, in the case of any commonwealth war burial, the Commission may, on giving the required notice, themselves remove and reinter any such remains or cremate them in any crematorium and may dispose of any tombstone, monument or other memorial commemorating the deceased, and the landowner shall defray the F1reasonable cost of such removal and reinterment or cremation or disposal; and if any question arises as to what is a reasonable sum for that purpose the decision of the Commissioners shall be conclusive.

If the removal and reinterment or cremation or disposal, as the case may be, has not been carried out by the personal representatives or relatives or the Commission in accordance with the provisions of this Schedule within two months from the date of the required notice, the landowner may carry out the removal and reinterment or cremation or disposal as if the required notice had not been given.