My hon. Friend is absolutely right that no deal is simply not acceptable for security or for data, which I will come on to shortly.
The Minister mentioned that four non-EU countries are members of SIS II, which is absolutely right. Iceland, Norway, Switzerland and Liechtenstein participate by virtue of their membership of Schengen. These non-EU member states are bound to avert any substantial differences in the case law of the ECJ, and they are required to implement structures and procedures that keep pace with changes in the Schengen rulebook. If they do not do so, their agreements will be terminated.