That is an important point. As my right hon. Friend will know, the Government believe that the existing structure for Eurojust works well, and provides for effective practical co-operation in dealing with cross-border criminality. I shall develop that point further during my speech.
We also need to consider what the coalition programme says about preserving the integrity of our criminal justice system when deciding whether to opt into a new justice and home affairs proposal. The new Eurojust proposal would create mandatory powers for national members—powers which would allow it to require coercive measures at a national level. This House will already be aware that we have expressed concerns about any such powers being granted to Europol, the EU police agency, and our concerns hold true in this regard too. The proposed text goes further in explicitly requiring that those based in The Hague would be able to insist that national authorities take investigative measures in certain circumstances. That could, for example, include requiring them to issue a search warrant in the UK. That would cut across the division of responsibilities and separation of powers between police and prosecutors in England and Wales and Northern Ireland. It also fails to take into account the role of the independent judiciary in ensuring that certain coercive measures are granted to police in appropriate circumstances. Moreover, the proposals would conflict with the role of the Lord Advocate in Scotland, who has the sole, ultimate responsibility for determining investigative action in Scotland. That would be undermined by the proposed powers.
These are not matters of mere technicality. They are about fundamental aspects of our systems of law and would require wholesale and unjustified changes in order to be implemented. They would also conflict with the principle that operational decisions are best made as close to the operational level as possible, and would disrupt the operational independence of our law enforcement officials and prosecutors.