The hon. and learned Lady seems to be very focused on future referendums and the desire to rerun arguments that were held some time ago. I want to do justice to her amendments as much as to anybody else's, and I will say this about the amendments posited by her and the Labour party: they offer different visions of how challenge might be mounted by using the charter. Amendment 4, which stands in the name of the Leader of the Opposition, deals with a situation akin to that under the Human Rights Act, whereby a declaration of incompatibility can be given, but that does not guarantee full redress for individuals seeking it under the charter. I accept that the amendment in the name of the hon. and learned Lady goes further and would retain a power in effect to strike down legislation if it is incompatible with the charter. I simply say to both of them, with the greatest of respect, that their approaches work against the core aims of the Bill. We are leaving the EU, and there has to be certainty about the process; and certainty in the law lies at the heart of everything else we have to do. That is the simple reason why we cannot accept those amendments. I was interested in the arguments of the hon. Member for Bristol East (Kerry McCarthy) about clause 4, when she moved her amendment 57 and spoke to her new clause 19. My argument about clause 4 is simply this: indeed, as the sweeper clause-the description she adopted-it has the important function of curing any loopholes that might exist in European law when we leave the EU and deals with the question of uncertainty that I know she is extremely concerned with. I will try to reassure her. She will remember that the explanatory notes contain a helpful and non-exhaustive list of the type of directly effective rights, such as equal pay-a very important right-that are designed to be covered by this important provision in clause 4. As I have said in evidence in another place, we are simply seeking to ensure the important principle of reciprocity in the enforcement of fundamental rights such as those of equality, which she referred to, and those pertaining to the environment, for which I know she also has a great passion. In conjunction, I can deal with the hon. Member for Enfield, Southgate (Bambos Charalambous), who succinctly and clearly made his argument on new clause 16, which deals fairly and squarely with equalities. We have already made our commitment clear that all the protections in and under the Equality Acts of 2006 and 2010 and the equivalent Northern Ireland legislation will continue to apply once we have left the EU. In Committee, we tabled an amendment which would secure transparency in that regard by requiring ministerial statements to be made about any amendments made to the Equality Act through secondary legislative powers under the Bill. What concerns me about new clause 16 is that it would go further by creating new free-standing rights, perhaps even more than have been proposed in amendments relating to the charter. That is not the purpose of the Bill. The Bill is about maintaining the same levels of protection on the day after exit as on the day before. It is not a vehicle for substantive legislative changes such as those that have been proposed, and for that reason we cannot accept the new clause. I am grateful to my right hon. and learned Friend the Member for Beaconsfield (Mr Grieve) for his qualified welcome for the Government amendments. The reason for a three-month time limit analogous to that which exists in domestic judicial review is the important policy consideration that there must be a degree of certainty when it comes to ongoing litigation and dispute about EU law as we enter the post-exit era. I think there must be some resolution of that by way of a limitation period. Retaining an open-ended right of action would create more uncertainty for businesses and individuals about rights and obligations. After we cease to be a member of the European Union, it would not be right to allow “general principlesâ€ challenges to Acts of Parliament to continue, because that is not in line with the purposes of Brexit. To put it simply, outside the context of EU law, the ability of courts to disapply Acts of Parliament on “general principlesâ€ grounds is not consistent with the way in which our domestic legal system functions. That must be at the heart of our policy considerations.