A no - deal Brexit would result in the UK losing access to the EU 's security databases , according to the UK government 's own official analysis . opposition leaders have already stated that the databases , which contain fingerprints , DNA , vehicle registration details and other information on suspects , form an irreplaceable part of their operations and could endanger national security if lost . Leaving the EU without a deal would also see the UK lose access to the National Information II system , which allows police forces across Europe to immediately exchange information on wanted or missing persons , dangerous objects such as firearms , and criminal suspects .
A no-deal Brexit would result in the UK losing access to the EU's security databases, according to the UK government's own official analysis. Police leaders have already warned that the databases, which contain fingerprints, DNA, vehicle registration details and other information on suspects, form an irreplaceable part of their operations and could endanger national security if lost. Leaving the EU without a deal would also see the UK lose access to the Second Information II system, which allows police forces across Europe to immediately exchange information on wanted or missing persons, dangerous objects such as firearms, and criminal records.