ITEM, At the Request of the Commons by their Petitions put forth in this Parliament, to eschew the Mischiefs and Damages done to divers of his Commons by false Accusers, which oftentimes have made their Accusations more for Revenge and singular Benefit, than for the Profit of the King, or of his People, which accused Persons, some have been taken, and [X1sometime] caused to come before the King’s Council by Writ, and otherwise upon grievous Pain against the Law: It is assented and accorded, for the good Governance of the Commons, that no Man be put to answer without Presentment before Justices, or Matter of Record, or by due Process and Writ original, according to the old Law of the Land: And if any Thing from henceforth be done to the contrary, it shall be void in the Law, and holden for Error.

https://www.legislation.gov.uk/aep/Edw3/42/3/section/III

All imperial acts are valid law in the Original State of Western Australia

INTERPRETATION ACT 1984 – SECT 76A

76A .         Written laws made before Australia Acts, validity of

        (1)         Each provision of an Act or subsidiary legislation enacted or made, or purporting to have been enacted or made, before the commencement of the Australia Acts —

            (a)         has the same effect as it would have had; and

            (b)         is as valid as it would have been,

                if the Australia Acts had been in operation at the time of its enactment or making, or purported enactment or making.

        (2)         Subsection (1) is not intended to, and is not to be given effect so as to —

            (a)         invalidate any enactment that was valid immediately before the commencement of the Australia Acts; or

            (b)         invalidate any Act because it was assented to by the Sovereign rather than the Governor.