Finance Bill

My Lords, none of us expects the Minister to produce new tax proposals, but could he help us by saying why the Government are happy with non-domiciled taxpayers, perhaps billionaires, paying no stamp duty on very expensive properties in London while those paying tax at 40 per cent or less as domestic taxpayers are expected to pay 2, 3 and 4 per cent? What is the logic of this? What is it that the Government need to think about here? Can the noble Lord tell us what the Government think makes this a justifiable system?