A certificate by the Attorney - General stating that:
(a) Australia or another specified country is a party to a specified treaty;
(b) the treaty entered into force for Australia or that other country, as the case may be, on a specified date; and
(c) as at the date of the certificate, the treaty remains in force for Australia or that other country;
is, for the purposes of any proceedings under this Act, prima facie evidence of the facts stated in the certificate.