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11 December 2020 — News story
More than 100,000 security and resilience specialists and colleagues in crowded places now have access to the Action Counters Terrorism application for business.
12 August 2020 — Guidance
Guidance on Marauding terrorist attacks
10 June 2020 — News story
Tens of thousands of people across the UK have been undertaking counter terrorism training from their kitchen tables during the lockdown.
18 July 2017 — Guidance
Advice for the public on the steps they can take to keep themselves safe in the rare event of a firearms or weapons attack.
2 November 2020 — Guidance
Guidance on increasing the protection of crowded places from a terrorist attack.
17 November 2020 — Guidance
The National Vehicle Threat Mitigation Unit (NVTMU) is a police unit that administers the National Barrier Asset (NBA).
See all latest documents
The National Counter Terrorism Security Office (NaCTSO) is a police hosted unit that supports the ‘protect and prepare’ strands of the government’s counter terrorism strategy.
NaCTSO works with the Home Office.
Read more about what we do
Contact Form: Action Counters Terrorism: Report Suspicious Behaviour
0800 789 321
It’s probably nothing but… if you see or hear anything that could be terrorist-related trust your instincts and call the Confidential Hotline.If you think you have seen someone acting suspiciously, or if you see a vehicle, unattended package or bag which might be an immediate threat, move away and call 999.
Contact Form: Report online material promoting terrorism or extremism
Report illegal or harmful information, pictures or videos you’ve found on the internet. You can make your report anonymously.
Contact Form: Contact your local Counter Terrorism Security Advisers
Counter terrorism security advisers help businesses and local communities. Contact your CTSA for help and guidance on security and details of local awareness events.
+44 (0)207 931 7142
Enquiries should be addressed to your local CTSA in the first instance. To report suspicious behaviour please use the Confidential Hotline.
020 3276 3803
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