(1) An Post may detain any postal packet suspected of containing a communication to which this section applies and shall forward every postal packet so detained to the Revenue Commissioners and those Commissioners may open and examine the packet, and if they find therein any communication to which this section applies may detain the packet and its contents for the purpose of prosecution, and if they find no such communication therein shall close the packet and return the same to the Minister for Posts and Telegraphs who shall forward the packet and its contents by post to the person to whom it was addressed.
(2) Whenever Bord Telecom Éireann or An Post acting as its agent receives for transmission by telegraph a message which appears to be a communication to which this section applies, he may send to the Revenue Commissioners a copy of such message and such information in regard thereto as he shall think fit to send or the Revenue Commissioners may ask for.
(3) The Minister for P