Dr Fox said:
'The public will wonder why the government are spending time fiddling around with the electoral system when they should be dealing with our schools, our hospitals and our economy - an economy which seems to have new problems every day.
'This whole exercise has had nothing to do with the national interest and everything to do with concocting a system that suits the personal and party interests of the prime minister's cronies.
'The present system also allows voters to show their dissatisfaction by periodically sending the removal van to Number Ten.
'The Conservatives suffered heavily last year under the current British system, but we believe it is the best for our country. We are determined to put the national interest ahead of any party interest.
'One of the strongest features of our current system is the clear link between voters and their MPs. This new system - untried anywhere in the world - for which Britain is to be the laboratory experiment, would create a whole new class of MPs, elected by no-one and responsible to party bosses, not the voters.
'We believe that power in our electoral system should rest with those who visit the polling booths on election day and not those who reside in political ivory-towers.'