The National Crime Agency facilitates cooperation between UK and international law enforcement agencies. Within the NCA, the UK International Crime Bureau provides:
INTERPOL is the world’s largest international police organisation, with 190 member countries. Within the NCA the UK International Crime Bureau provides the UK National Central Bureau for INTERPOL.
Europol works closely with law enforcement agencies in the 28 European Union member states and in other non-EU partner states and organisations. Within the NCA the UK International Crime Bureau provides the UK Europol National Unit.
SIRENE is the network which supports cooperation and coordination between law enforcement agencies in the EU member states. The UK International Crime Bureau within the NCA provides the UK SIRENE Bureau and is the UK Central Authority for European Arrest Warrants.