324.—(1) (a) Where any document is required or permitted by this Act (including subsection (2) of this section) to be served on any person such document shall be addressed to such person and shall be served on such person in some one of the following ways:—

(i) by delivering it to such person;

(ii) by leaving it at the address at which such person ordinarily resides;

(iii) by sending it by post in a prepaid registered letter addressed to such person at the address at which he ordinarily resides.

(b) For the purposes of this subsection a company registered under the Companies Acts 1908 to 1924, shall be deemed to be ordinarily resident at its registered office, and every body corporate and every unincorporated body shall be deemed to be ordinarily resident at its principal office or place of business in the State.

(2) Where any document is required or permitted by this Act to be served on the owner of a fishery and either such owner cannot be found in the State or the name or address of such owner cannot after reasonable inquiry be ascertained, such document shall be deemed to have been duly served on such owner if it is served on the occupier of such fishery.