Abstract This article seeks to improve understanding of the field of policing in an evolving European space. It explores connections between officers working in police institutions affiliated with the European Union and police institutions in the United Kingdom. Its main contribution lies in offering a typology of interactions surrounding the exchange and interpretation of information through (i) shared databases, (ii) liaison officers, (iii) training programmes and (iv) transfer of threat images. This allows sketching a more nuanced picture of the field of EU–UK policing in terms of both its internal composition and its external boundaries.