The Civil Nuclear Constabulary (CNC) is a specialist armed police force in the United Kingdom. Its primary mission is to provide armed protection to civil nuclear sites and nuclear materials, whether on-site or in transit. CNC officers are highly trained and authorized to carry firearms, ensuring the security of critical national infrastructure against threats such as terrorism, sabotage, and theft of nuclear materials. The CNC operates under the governance of the Civil Nuclear Police Authority (CNPA) and works closely with site license companies, Home Office police forces, and other security agencies. Their remit includes deterrence, counter-terrorism, and maintaining public order in and around nuclear facilities. The CNC plays a vital role in the UK's counter-terrorism strategy and national security.
Serves as the central command and administrative hub for the Constabulary. It oversees strategic planning, operations coordination, training standards, policy development, intelligence management, and corporate support services for all CNC units across the UK.
Located within the secure Culham Science Centre campus, providing a controlled and resilient environment. The HQ facility is equipped with specialized infrastructure to support police operations, including advanced command and control suites and access to specialist training facilities. Due to security considerations, specific architectural details are not publicly disclosed.
The work culture at CNC HQ is characterized by professionalism, discipline, and a strong focus on security and public safety, reflecting its critical national security role. It fosters teamwork, continuous improvement, adherence to high ethical standards, and collaboration with national and international partners.
The HQ is pivotal for the cohesive and effective operation of the CNC nationwide. It ensures consistent standards of policing, rapid strategic response capabilities, and unified command for the protection of the UK's civil nuclear sector from diverse threats.
The Civil Nuclear Constabulary's direct operational jurisdiction and policing activities are exclusively within the United Kingdom. Their primary focus is the armed protection of UK civil nuclear sites and nuclear materials during transit within the country. However, the CNC actively engages with international counterparts and participates in global forums concerning nuclear security. This includes sharing best practices, contributing to international standards development, participating in joint training exercises, and liaising with equivalent law enforcement and security agencies in other countries to enhance collective capabilities against global threats to nuclear safety and security. The CNC does not maintain permanent operational offices or bases outside the UK.
CNC HQ, Culham Science Centre
Abingdon
Oxfordshire
United Kingdom
Address: CNC Operational Policing Unit, Sellafield Site, Seascale, Cumbria, CA20 1PG
Ensuring the day-to-day physical security of the Sellafield site, safeguarding vast quantities of nuclear materials, and providing rapid armed response to any security incidents in the Cumbrian region related to the site's operations.
Address: CNC Operational Policing Unit, Dounreay Site, Thurso, Caithness, KW14 7TZ
To provide specialized armed policing for the Dounreay site in the north of Scotland, maintaining security integrity throughout the complex decommissioning and environmental remediation operations.
Address: CNC Operational Policing Unit, Sizewell B Power Station, Leiston, Suffolk, IP16 4UR
Safeguarding critical national energy infrastructure in Suffolk by protecting the Sizewell B power station from diverse security threats, thereby ensuring its continued safe operation and contribution to the UK's energy supply.
Address: CNC Operational Policing Unit, Hartlepool Power Station, Tees Road, Hartlepool, TS25 2BZ
To maintain the security of this key energy-producing asset in the North East of England, preventing any hostile actions and ensuring its contribution to the national grid is not compromised by security incidents.
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As of April 2025, Civil Nuclear Constabulary' leadership includes:
Civil Nuclear Constabulary has been backed by several prominent investors over the years, including:
In the last 12 months (from approximately mid-2023 to mid-2024), the Civil Nuclear Constabulary appointed a new Assistant Chief Constable (Operations). No high-profile departures from the executive team (Chief Officer Group) have been publicly announced by the CNC during this specific timeframe.
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Official email addresses for the Civil Nuclear Constabulary (CNC) personnel typically follow a standard UK public sector and police service naming convention. This usually involves a combination of the individual's first name and last name, or an initial and last name, followed by the official CNC domain.
firstname.lastname@cnc.police.uk
Format
jane.doe@cnc.police.uk
Example
85%
Success rate
GOV.UK - Civil Nuclear Constabulary • 2024-03-14
CNC officers participated in Exercise Winchester Accord, a large-scale multi-agency counter-terrorism exercise in Hampshire and Surrey. The exercise tested the response to simulated terrorist incidents, underscoring CNC's crucial role in national security and its ability to work effectively with Home Office forces and other emergency services....more
GOV.UK - Civil Nuclear Constabulary • 2024-02-01
The CNC initiated the distribution of a new operational uniform to its Authorised Firearms Officers. The GORE-TEX Arktis M620 uniform is designed to offer improved practicality, comfort, and weather protection, replacing the previous attire and enhancing officer effectiveness in diverse operational environments....more
GOV.UK - Civil Nuclear Constabulary • 2023-10-23
The CNC published its Annual Report and Accounts for the 2022-2023 period, detailing its performance, operational achievements, financial standing, and strategic priorities. The report provides transparency on the Constabulary's activities in safeguarding nuclear sites and materials....more
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