(1) There is to be a seal, called the customs seal, the design of which must be determined by the Comptroller - General of Customs.
(2) The design so determined shall include:
(a) the Coat of Arms of the Commonwealth, that is to say, the armorial ensigns and supporters granted to the Commonwealth by Royal Warrant dated 19 September 1912; and
(b) the words "Australia--Comptroller - General of Customs".
(3) The customs seal must be kept at such place, and in the custody of such person, as the Comptroller - General of Customs directs.
(4) The customs seal must be used as directed by the Comptroller - General of Customs.
(7) All courts (whether exercising federal jurisdiction or not) and all persons acting judicially shall take judicial notice of the impression of the customs seal on a document or a copy of a document and, in the absence of proof to the contrary, shall presume that impression was made by proper authority.