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International investigation useful contacts

Investigation — Authorised Professional Practice

All topics

Summary

This page provides a list of key contacts and organisations that support international investigation efforts for UK police officers. It includes information on various authorities and services such as the Joint International Crime Centre (JICC), Crown Prosecution Service (CPS), and National Crime Agency (NCA), among others. Each entry contains essential contact details, including telephone numbers and email addresses, to facilitate cooperation in tackling transnational crime. The page serves as a reference guide for officers to access necessary resources quickly when dealing with international crime investigations.

Key principles

  • 1Utilize various organizations for international crime coordination.
  • 2Access essential contacts quickly for efficiency in investigations.
  • 3Engage with legal prosecution services for assistance with cases.

Defined terms

Joint International Crime Centre (JICC)
A centre established to enhance the UK’s international law enforcement cooperation.
Crown Prosecution Service (CPS)
The body responsible for prosecuting criminal cases investigated by police in England and Wales.
Crown Office and Procurator Fiscal Service (COPFS)
Scotland's prosecution service.
Public Prosecution Service for Northern Ireland (PPS)
The principal prosecuting authority in Northern Ireland.
Border Force
A law enforcement command responsible for securing the UK border.
ACRO Criminal Records Office
The national police unit responsible for exchanging criminal conviction information.
National Crime Agency (NCA)
An agency that tackles serious and organised crime.
National Probation Service
The service that supervises high-risk offenders released into the community.
Probation Board for Northern Ireland
An agency to support public safety in Northern Ireland.
HM Prison Service
The service responsible for keeping sentenced individuals in custody.
Scottish Prison Service (SPS)
Agency delivering custodial and rehabilitation services in Scotland.
Northern Ireland Prison Service (NIPS)
Agency responsible for the operation of prisons in Northern Ireland.
Immigration Enforcement
Agency responsible for tracking immigration offenders.
Regional Organised Crime Units (ROCUs)
Specialist policing units tackling serious and organised crime.
Home Office – UK Central Authority
UK authority for international legal cooperation.
HM Courts & Tribunal Service
Responsible for the administration of courts in England and Wales.
Scottish Courts and Tribunals Service
Provides administrative support to Scottish courts.
Northern Ireland Courts and Tribunals Service
Agency responsible for courts and tribunals in Northern Ireland.

This is a brief, factual summary. The full APP guidance — including operational detail, statutory references and case studies — lives on the College of Policing website. APP is the authoritative source for UK policing practice.

Read the full APP guidance

Source: College of Policing — Authorised Professional Practice · Crown copyright, licensed under Open Government Licence v3.0. Summary fetched 2026-06-27.