Former NSW planning minister Frank Sartor says he has no plans to challenge Nathan Rees for the premiership.

The Sun-Herald reported that after days of speculation about his ambitions, fuelled by claims of secret meetings that discussed drafting him, Mr Sartor has denied being part of a plot to depose Mr Rees after only four months as Premier.

Attorney-General Robert McClelland agreed the case had been riddled with mistakes from the top down, he said the Government had no plans to apologise - and admitted not a single head would role over the affair.

Releasing the report today, Mr McClelland said mistakes had been made from the highest level down to the investigating officers but the Government would not go "on a witchhunt".