Section 23: Power to deal with postal articles containing goods in respect of which an offence is being committed

(1) The Postmaster-General may, by notice in writing-
(a) if he has reason to believe that a postal article contains goods in respect of which an offence is being committed or is being attempted to be committed; or
(b)
if he is requested to do so by a police office not below the rank of superintendent of Police,
require the attendance at the post office at a specified time, of the addressee of the postal article or of some agent deputed in writing by the addressee, and of the person, if any, who made the request or of his agent deputed in writing and the postal article shall then be opened by the addressee or his agent in the presence of an officer of the Postal Service, deputed for that purpose by the Postmaster-General and of any other person named or referred to in the notice who attends.
(2) If the addressee or his agent fails to attend in pursuance of the notice or refuses to open the article, the article shall be opened by the officer of the Postal Service in the presence of any of the persons named or referred to in the notice who attends.
(3) In all cases, a postal article, after being opened under this section, shall be delivered to the addressee, unless it is required for the purpose of any further proceedings under this or any other Act for the time being in force.