155.Section 104(1) and (2) provide for mail-bags, packets in the post and their contents, which are not the property of the Crown, to be given the same immunity from examination, seizure or detention, as if they were the property of the Crown.
156.Subsection (3) provides for exceptions to the above immunities where the Commission is investigating an offence of delivery of letters without a licence or where Customs and Excise is to exercise its powers.
Commentary on Sections Part VII Miscellaneous and Supplementary Section 104: Inviolability of mails