Clegg sets out terms for hung parliament

Lib Dem leader set to announce four tests Labour and The Tories must pass to secure his party's supp

Nick Clegg will this weekend announce the four "tests" Labour and the Conservatives would have to pass in order to secure the support of the Liberal Democrats in the event of a hung parliament.

In an interview with the Independent, the Liberal Democrat leader indicated that he would use his party's spring conference in Birmingham to reveal "four steps for fairness" that Gordon Brown or David Cameron would have to satisfy.

They are: reform of the tax system to lift four million people out of tax by raising the income tax threshold to £10,000; the introduction of a "pupil premium" to target spending at children from poorer families; a switch to a balanced, green economy and constitutional reform including a new voting system for Westminster elections.

Speculation over Clegg's intentions has heightened in recent weeks as opinion polls have indicated that a hung parliament is the most likely outcome of the next election.