SIR Alistair Graham, the former chairman of the Committee on Standards in Public Life, said politicians have displayed a lack of moral leadership over their expenses. Sir Alistair said ministers and their fellow MPs had been playing the expenses system for personal gain. His accusations followed the Daily Telegraphs exclusive revelations about Gordon Brown, the Prime Minister, and 13 of his ministers, who are facing questions over their use of the parliamentary expenses system to subsidise their lifestyles. Brown has been forced to defend payments to his brother for cleaning services after the Telegraph disclosed details of his expenses. Receipts reveal that the Prime Minister paid his brother Andrew more than 6,500 for the use of a cleaner at his private flat in Westminster as well as claiming twice for a plumbing bill. Sir Alistair said that the Daily Telegraphs revelations showed MPs are stretching the rules to the furthest limit for what looks like personal benefit. Its very clear that they have been casual with taxpayers money, he told Sky News. I think a culture developed in the House of Commons that is was legitimate to play the system to maximise your income. Mr Brown blamed the MPs expenses row on the system, saying he was already trying to overhaul the Parliamentary expenses regime. The system doesnt work, he told the BBC. Ive said it doesnt work, its got to be changed. We voted for change and that change has got to come quickly. Asked whether MPs should learn to live in the real world, he said: Absolutely. Thats why the systems got to change. Ive been determined over these past few months... the systems wrong, its not the way to work. Downing Street has already been forced to release details of the contract for the cleaning at Mr Browns flat. The contract shows that the cleaner was paid 357 a month - a rate of 4,284 a year - from December 2004 for work at both of the brothers flats in SW1. The cleaner spent seven hours cleaning the then-chancellors property and three hours on his brothers. On Thursday, after being approached by the Daily Telegraph, Mr Brown also repaid a plumbing bill he had claimed for twice during 2006. Charles Clarke, the former home secretary, has now written to Michael Martin, the Speaker of the House of Commons, calling for all of MPs expenses receipts to be published immediately. Todays disclosures about Mr Brown and the other Cabinet ministers claims were the first of a series planned by the Telegraph. Our files also how Jack Straw, the Justice Secretary, over-claimed for both his council tax and mortgage bills. Alistair Darling, the Chancellor, is revealed to have changed his official second home designation four times in four years. Meanwhile, Foreign Secretary David Miliband, spent so much on pot plants at his constituency home that his gardener questioned whether they were necessary given [the] relatively short time youll be here. But the disclosures put the spotlight most firmly on Mr Brown, who has called for the current expenses system to be replaced. The receipts submitted to the Parliamentary authorities show that he paid his brother, a senior executive at EDF Energy, 6,577 over 26 months between 2004 and 2006 for cleaning at his flat. Harriet Harman, the deputy leader of the Labour Party, attempted to defend MPs and said it was up to the parliamentary Fees Office to assess the validity of expenses claims. She told GMTV: I know people will be very angry and concerned about this, but I do want to reassure people that we have recognised theres a problem and weve already taken action on this. She denied the accusations amounted to fiddling expenses. Telegraph I think youve got to be quite careful about saying 'fiddling. I dont think that because Gordon Brown, the Prime Minister, shared a cleaner for his flat with his brother, that that is fiddling. I dont think anyones suggesting that Gordon Brown was pocketing that 6,000, nor are they suggesting that his brother was pocketing that 6,000. I agree with you, and weve all agreed, that the system is not one that commands public confidence and that it had to change. Asked about Lord Mandelsons 3,000 claim for work carried out on his Hartlepool constituency home, which he submitted less than a week after he announced his decision to stand down as an MP, Miss Harman refused to comment. But she said such claims should only have been paid if they were necessary for parliamentary duties. She told Nicky Campbell on BBC Radio 5 Lives breakfast programme: Im not going to comment on individual cases where I dont know the details of them but we do recognise that the system needs to change and even under the old system money should not have been paid out unless it is necessary for parliamentary duties. Telegraph