Councillor Archie Simpson quit on Wednesday after 25 years as a Labour member, and 14 as a Glasgow councillor. When he appeared in public as a new member of the SNP he was closely questioned by journalists about his personal finances, and admitted being in council tax arrears of about£2000.
Tory Bailie William Aitken said he had previously been refused information about the arrears of Labour councillors because it could breach personal privacy law under the Data Protection Act. He has written to the city council's chief executive, James Andrews, demanding an explanation.
'It appears there is strict confidentiality for some in the Labour group but none for those who leave it', he said.