John McFall, the outspoken member of Britain's upper house of parliament who described bank bosses as being "asleep at the wheel", has warned that proposals for the break-up of Royal Bank of Scotland (RBS) could be swept aside by the chancellor.

McFall, who is a member of the Parliamentary Commission on Banking Standards, told CNBC on Thursday that although he hoped George Osborne would listen to the Commission, the British chancellor might not like being dictated to.