Section 31(4) of the Building and Construction Industry Payments Act 2004 (Qld) does not preclude a declaration that an adjudicator's determination is void or the setting aside of a judgment obtained by filing an adjudication certificate, where there is no valid determination. Whether the test for good faith under the Payments Act requires personal fault and conscious intent (narrow test) or merely a genuine attempt to exercise power (broad test) remains unresolved, as the Court found that on either test the adjudicator had acted in good faith. Errors in the weight accorded to evidence, interpretation of contractual provisions, or risk allocation are non-jurisdictional errors of law that do not invalidate an adjudication decision.
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