The Labour Party has thrown its weight behind four regional councillors who called for the Auditor-General to investigate the $43.1 million-dollar buy-in to the Ruataniwha Water Storage Scheme.
Last week councillors Rick Barker, Rex Graham, Tom Belford and Peter Beavan wrote to the Office of the Auditor-General to investigate the "provisional decision" made by the regional council to enter into a 35-year water user contract with Hawke's Bay Regional Investment Company.
"The council's 'provisional decision' to commit so much ratepayers' money without any public consultation is a very serious matter," Labour's MP for Ikaroa-Rawhiti, Meka Whaitiri, said.
"Despite a litany of questionable decisions over Ruataniwha, we have seen no leadership from the National government.
Ms Whaitiri said Local Government Minister Peseta Sam Lotu-Iiga had kept silent.
"I believe the Auditor-General [Lyn Provost] is best placed to shed some light on how the council is spending the public purse," she said.