This paper has been written as a core project piece for the Global Challenges Annual Competition which presented us with the question: “what can be done to ensure Britain does not leave itself more exposed to foreign terrorists now it has voted to leave the EU? ”Our team has spent the last six months researching, conducting interviews, producing a short film, launching a blog and finally writing a report where we outline and analyse the key themes presented to us in the question.

Therefore, the aim of this paper is to explore to what extent nationally implemented counter- terrorism measures can lower the existing foreign terrorist threat to Britain’s security after Brexit. It is essential to remember that one should recognise the speculative dimension of the debate on implementation of Brexit and its consequences. With this in mind, we strongly argue that the key threat to post-Brexit Britain lies in the heart of over-securitising foreign terrorism and alienating domestic “suspect communities”.

We employ critical analysis discourse, specifically applying Copenhagen’s School securitisation theory. It enables one to recognize the way an overblown political phenomenon labelled as an “existential threat” is actively used as a tool to justify political “emergency” actions.