CITY regulators are to be given new powers to tear up bankers’ contracts if they include excessive pay and bonus deals which might threaten the stability of the financial system, it was revealed today.

The measures will be included in a Financial Services Bill forming the centrepiece of Wednesday’s Queen’s Speech, which Gordon Brown said would deliver “a transformation of the way the financial sector is policed”.

Tories dismissed the proposal as “headline-chasing” which would do nothing to prevent a multi-billion round of bonus payments in the City this Christmas.

And the British Bankers’ Association warned that any legislation should not be designed in a way that might drive financial institutions to relocate away from the UK.

But Chancellor Alistair Darling said that bankers must start seeing themselves as “fellow citizens” and said the public regarded some of the bonuses they had received as “ludicrous”. Mr Darling told a Sunday newspaper that his Bill would give the Financial Services Authority “powers if necessary to tear up contracts that would result in payments being made that would cause instability”.

The legislation will enable the FSA to require banks to renegotiate remuneration packages which breach its pay code, and fine those which continue to offer unjustifiable sums.

The new rules will come into effect next year if the Bill completes its passage through Parliament before the election – which must be held by June 3 – and will affect all new contracts. They will apply to all UK banks, including RBS, Lloyds, Barclays and HSBC as well as the UK operations of global investment banks like Goldman Sachs.