—(1) Every summons issued for an offence under this Act, and every notice, order or other document required or authorised to be given or served under this Act may be served on any person —
by delivering it to the person or to some adult member or employee of his family at his usual or last known place of residence or any address furnished by him;
by leaving it at the usual or last known place of residence or place of business of the person in a cover addressed to him or any address furnished by him;
by sending it by normal post or registered post in a prepaid letter addressed to the person at his usual or last known place of residence or business or any address furnished by him; or
in the case of a notice to be served on a person whose usual or last known place of residence or business cannot, with reasonable diligence, be ascertained, by publication of such notice in the Gazette.
(2) Where any summons, notice, order or document is served on any person by registered post, it shall be deemed to have been served within such time as it would take to arrive in the ordinary course of transmission and in proving service of the same it shall be sufficient to prove that the envelope containing the summons, notice, order or document was properly addressed, stamped and posted by registered post.
(3) All notices, orders and other documents which the Registrar is empowered to give by this Act may be given by any officer duly authorised by the Registrar.
(4) Subsection (1) shall not apply to any summons in connection with any offence punishable with imprisonment and such summons shall be served in the manner prescribed by the Criminal Procedure Code (Cap. 68) for the service of summonses under that Code.