Conservative Assembly members criticised the move on twitter:
London Assembly LabLibGreens decide not to earn their pay by not holding the Mayor to account. #giveBackYourSalaries
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London Underground claims unions refused to discuss a revised pay offer.
Lutfur Rahman was also ordered to disclose detail of income and expenditure.
10 years on, George Psaradakis has given his first interview, recalling the events of July 7 2005.