(1) Subsections (2) and (3) apply if, before the commencement—(a) a tribunal made, or purported to make, a decision on a reference; and(b) an insurer, employer, or any other person whose interests may have been affected by the decision was not present or heard before the tribunal.
(2) It is declared that a decision of a tribunal is taken to be, and to always have been, valid to the extent that the decision may not have been valid because a person mentioned in subsection (1)(b) was not present or heard before the tribunal.
(3) However, this section does not make valid a decision of a tribunal that has been set aside by the Court of Appeal before the commencement for the reason mentioned in subsection (2).
(4) Subsection (5) applies to a tribunal that, before the commencement, exercised or purported to exercise jurisdiction under chapter 11, as in force from time to time before the commencement, on a reference of any description in relation to an injury under a former Act.
(5) It is declared that the tribunal had, and is taken always to have had, that jurisdiction.