The Shadow Leader of the House of Commons, Theresa May, suggested that MPs' pay will have to be examined if the current system of allowances is changed.
She said: "I think we should take that housing allowance out, that's my personal view. There would need to be an increase in salary because most MPs do have to have two homes, that's an extra cost of being a Member of Parliament."
Ms May also said that the Conservatives should look very seriously at whether or not there could be some kind of recall mechanism to sack MPs.
She said the idea could be used when MPs were found guilty of serious wrong doing or they changed political parties.
She said: "I think the reason we should look at it seriously is because it is right that there is this breakdown of faith, there is this breakdown of trust between the people and politicians.
"And we have to do things to restore that trust, and there are a whole variety of ways in which we can be doing this. I think this is one we should look at as well."
Sack transgressing MPs?
Also interviewed in the film about the idea of recalling MPs, was Evelyn Morrison, Chairman of the Conservative Association in old Bexley and Sidcup, where Derek Conway is the sitting MP.
When asked about the correspondence she had received about recent events, she said: "I think they feel very let down with the events of the last few weeks.
"We are all volunteers at this association for the Conservative Party and naturally there is that feeling.
"My post bag has indicated to me that constituency members are unhappy that MPs who commit a serious wrong doing can go back into the House and receive their salary until they stand down at the next election."
Max Cotton, Politics Show reporter, then asked: "Do you mean - I know you do not want to use these words - do you mean they should be sacked?"
She replied: "I suspect that is what constituents are thinking."
The Politics Show, with Jon Sopel on Sunday 09 March 2008 at 12:00 GMT on BBC One.
What do you think? You can use the form below to e-mail the programme.
Disclaimer: The BBC may edit your comments and cannot guarantee that all emails will be published.