The commission said publication of the report had been delayed because of the recent death of the father of commission solicitor Tony Child and the death of Lady Porter's only grandson. Peter Bradley, deputy leader of the Labour opposition on the council, said Mr Magill did not want to publish the report on the 18th because the current leader of the council Miles Young will be abroad.
Mr Bradley wants it to published on the later date since he is away until January 10. Mr Bradley also sought to increase the pressure on the council's managing director Merv Montacute to publish documents seized from the office of former leader David Weeks.
The documents are believed to be fund raising letters for the Conservative group which unlawfully used council stationery. Mr Bradley and Mr Straw issued an opinion from Andrew Arden QC on Wednesday which says Mr Montacute has no right to withhold the information if he was acting on behalf of the council.
'They will go to the most expensive counsel to protect themselves with great battlements of legal arguments while we have to dip into our own pockets', he said.