The hon. Gentleman, who knows a lot about these matters, is right that this is one of the subjects that will have to be considered in looking at a general anti-avoidance rule. The problem, I think, is HMRC having to respond quickly to potentially huge numbers of pre-clearance requests of that kind, which would be a massive additional burden. If I were in the Minister's shoes, before going down that road, I would press very hard for some cast-iron assurances on the part of HMRC that those clearances could be provided quickly. The problem is that a lot of new bureaucracy would be required.
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