Mayor Steve Chadwick has ordered an independent review of Rotorua District Council's financial disclosures to councillors.
Yesterday's move came after the Rotorua Daily Post reported several councillors claimed to be unaware of the extent of the council's debt crisis.
Former chief executive Peter Guerin has disputed that, saying he did not believe councillors were completely unaware and it was a "mystery" to him that they didn't know.
Mounting debt levels at the council have led to severe cuts to capital-works spending and residents being told to expect a 3 per cent annual rates increase until at least 2030.
The independent review is to be undertaken by an external professional accounting firm and will cover the last two years.