House of Commons Library

Brexit: implications for national security

Published Sunday, April 9, 2017

This paper examines the possible impact of Brexit on national security.

Jump to full report >>

According to the Treaty on European Union, national security remains the sole responsibility of member states.

Consequently, the sharing of secret intelligence is generally conducted on an intergovernmental level, outside of the EU framework, and beyond the jurisdiction of the Court of Justice of the EU. The UK will remain at liberty to maintain such relationships and agreements, or to enter into new ones, regardless of the outcome of the Brexit negotiations. It has thus been argued that the impact of Brexit in this area will be minimal. 

However, representatives from law enforcement and the intelligence and security communities have emphasised the importance of EU wide cooperation in tackling security threats, through the sharing of information and data, participation in agencies, and a coordinated strategy.

Commons Briefing papers CBP-7798

Author: Joanna Dawson

Topics: Crime, EU law and treaties, Intelligence services, Terrorism

Share this page

Stay up to date

  • Subscribe to RSS feed Subscribe to Email alerts Commons Briefing papers

House of Commons Library

The House of Commons Library provides research, analysis and information services for MPs and their staff.