Paul Kavanagh from the investment firm Killik and co. said that new plans to cap bankers' bonuses will "create a very uncompetitive environment for many banks."
Speaking to Daybreak he added: "Not all pay is irresponsible pay."
As part of a financial reform package, ministers will consider a provisional proposal pushed last week by MEPs and backed by the European Commission.
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Police believe it is a "distinct possibility" that Halliwell was a serial killer, beyond the two murders he was convicted for.
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Heterosexual couple Rebecca Steinfeld and Charles Keidan have lost their appeal to enter into a civil partnership.