Court of Appeal judge Forrest Miller ruled accountability of those responsible for the council's past failings could be exacted in other ways, as had happened with the issue of proceedings against some of those involved. In such circumstances, little was achieved by denying the council the ability to set rates itself.
Two other judges - Justice Rhys Harrison and Justice Mark Cooper - agreed with Justice Miller that the association's appeal must be dismissed but issued separate reasons.
Association lawyer Matthew Palmer QC argued the official advice to the Parliamentary Local Government and Environment Select Committee which received submissions on the Bill was to the effect the legislation would remedy procedural illegalities only and would not deal with every failure of the council's governance. However, Justice Miller said the point of validation was to ensure the council may collect rates and that ratepayers must pay them, in full.
The court accepted the council's submissions that the Validation Act needed to be enacted as its finances needed to be urgently put in order because the Mangawhai wastewater scheme's costs had been incurred and nothing could be done about that. The other judges agreed.
Council's chairman of commissioners, John Robertson, welcomed the court's decision.