section 4(6)


4.(6) For the purposes of this Act, the service of any document and the giving or sending of any notice may be proved (a) by oral evidence given under oath by, or by the affidavit or solemn declaration of, the person claiming to have served, given or sent it; or (b) in the case of a peace officer, by a statement in writing certifying that the document was served or the notice was given or sent by the peace officer, and such a statement is deemed to be a statement made under oath.