Intelligence sharing is already established through various relationships -5,9,14 eyes. The EU have actually endangered our 5 eyes relationship through their own relationship with former Soviet states. Although there are entanglements in diplomatic relations intelligence relationships are often quite seperate. It is within the interests of both the EU and ourselves to share intelligence on crime and terrorism throughout the continent and in no one's interest for this to stop when we leave a trading block. It was always a non story and an attempt to mobilise intelligence sharing as a reason to remain.