Every election candidate should be forced to declare if they plan to take up second jobs outside Parliament , the sleaze watchdog has said . Lord Bew , chairman of the Committee on Standards in Public Life , warned trust in politics had been damaged and it would be 'foolish ' for politicians to think they could ignore public anger . It comes as plans are being drawn up to curb rowdy behaviour in the House of Commons , with MPs facing bans from debates for heckling and swearing across the chamber . Politicians standing for election in May should declare that they plan to keep second jobs once they reach the Commons , the head of the sleaze watchdog has said . Trust in politicians was rocked again last month with the emergence of a new 'cash for access ' scandal . Former foreign secretaries Jack Straw and Sir Malcolm Rifkind were suspended from their parties after being caught by hidden cameras discussing the possibility of working for a fictitious Chinese company . Veteran Tory Sir Malcolm also announced he would not stand for re-election in May 's general election , after he claimed MPs from professional backgrounds could not be expected to live on their £67,060 salaries . Prime Minister David Cameron insisted that extra work can be fitted in alongside constituency duties and MPs voted down a Labour call for a ban on holding paid directorships , consultancies or trade union roles . Labour candidates have already been told they will not be allowed to hold directorships or be consultants if elected in May . Lord Bew , chairman of the Committee on Standards in Public Life , warned trust in politics had been damaged and it would be 'foolish ' for politicians to think they could ignore public anger . MPs caught shouting and swearing across the Commons chamber face being banned under a Labour crackdown on bad behaviour . Shadow Commons leader Angela Eagle wants the Speaker to be able to issue yellow and res cards to MPs who behave badly . After a first warning , a rowdy MP could be ejected for an hour while a repeat offence could see them miss three sessions . It comes after complaints about the boorish behaviour in the Commons and warnings it deters people from engaging in politics . Labour MP Sarah Champion has claimed male MPs are 'very good at gesticulating ' about female MPs ' breasts and bottoms as they tried to make speeches . Lord Bew told The Observer : 'All candidates for parliamentary elections should publish at nomination a register of interests , including paid jobs . 'What we would expect them to be transparent about is whether they expect to continue with those roles . If the public feels that they have been brought into a decision on this matter , that can only be helpful . ' 'It would be foolish to ignore that we are in a new and worrying place . This is something that could be acted upon . If the parties decided to do it quickly , they could do . 'It is important for public confidence that the House of Commons is not seen to be influenced by the prospects of personal gain . We just ca n't allow this malaise to continue . ' Lord Bew expressed frustration that Parliament had not taken better steps to clean up the system , despite consistent calls by the committee for measures such as a cap on outside earnings , another idea being examined by Labour . 'They are really riding for a fall , in our view , unless a more proactive approach is taken to these issues , ' he said - saying that voters increasingly saw politics as 'an insider 's game ' . 'We have been arguing for change in and around lobbying , and we are frustrated we have n't been able to get Commons movement on it . We think that would have been helpful in the background to the current issues . 'We definitely believe parliament needs to take a more proactive approach . ' An Opinium poll for the newspaper found significantly increased public support for increasing MPs ' basic salaries in return for a ban on outside earnings - with the move now favoured by 40 per cent to 34 per cent . A year ago voters were mostly against the idea by 39 per cent to 36 per cent .
Sleaze watchdog Lord Bew says politicians are 'foolish ' to ignore anger . Chairman of Opinium calls for change . All candidates should publish a register of interests , including paid jobs . Follows 'cash for access ' scandal with Sir Malcolm Rifkind and Jack Straw . Labour draw up plans for yellow and red cards for rowdy MPs in Commons .