What it does
The Privy Council (Appeals from the High Court) Act 1975 is a short, targeted statute whose operative provision is contained in s 3. That section states that special leave of appeal to Her Majesty in Council from a decision of the High Court shall not be asked in a matter in which such special leave of appeal could, but for this Act, have been asked in accordance with section 3 of the Privy Council (Limitations of Appeals) Act 1968-1973 unless the decision of the High Court was given in a proceeding that was commenced in a court before the date of commencement of this Act.
In substance the Act imposes a temporal cut-off. It does not abolish the underlying mechanism of special leave; rather it withdraws the availability of that mechanism for any High Court decision arising from proceedings instituted after the new Act’s commencement. The drafting is deliberately referential: it borrows the category of matters described in s 3 of the 1968-1973 Act and then overlays a single exception keyed to the date the originating proceeding was commenced.
Section 1 supplies the short title, which may be cited in any legal context. Section 2 deals with commencement. The Act does not commence automatically on assent. Instead it “shall come into operation on a date to be fixed by Proclamation, being a date after the date on which the Governor-General makes known under section 60 of the Constitution that this Act has received the Queen’s assent.” The reference to Constitution s 60 is required because the Act touches the royal prerogative of appeals; the Proclamation mechanism therefore ensures formal constitutional propriety before the limitation takes effect.
The overall effect is to shrink the residual category of High Court decisions that can still be taken to the Privy Council. Once the Proclamation issues, any fresh proceeding commenced in an inferior court that later reaches the High Court will be insulated from further appeal to Her Majesty in Council, at least in the classes of matter previously governed by the 1968 Act. The statute is therefore both prospective and transitional: it respects accrued rights in older litigation while closing the door for the future.