(1) If:
(a) the Minister is unable, after reasonable inquiry, to find out who owns particular land; or
(b) the Minister is unable to give a notice under section 59 on the owner of land either personally or by post;
the Minister may give a notice under that section to the owner of the land by publishing a copy of the notice in a newspaper circulating in a district in which the land is situated and:
(c) if the land is occupied--giving a copy of the notice to the occupier; or
(d) if the land is not occupied--attaching, if practicable, a copy of the notice to a conspicuous part of the land.
(2) This section does not affect the operation of any other law of the Commonwealth, or of any law of a State or Territory, that authorises the service of a document otherwise than as provided in this section.