The New Zealand Supreme Court was established by statute only in 2003. It replaced the Privy Council in England as New Zealand's highest court.
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Two years before its establishment, the New Zealand Court of Appeal was found by the Privy Council in Taito v Q [2002] UKPC 15 to have engaged in systemic abuses of due process by dismissing as many as 1,500 appeals on an ex-parte basis over the previous 10 years, sometimes on the signature of a court registrar - dismissals often given only in handwritten notations on the court file.
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The public have been told these abuses have ceased despite the Court of Appeal judges found culpable for these due process breaches being the first appointees to the new Supreme Court. Only by seeing the public court records which these judges have been hiding will we truly know.