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Information about the Home Office's work fighting terrorism.

The Home Office is responsible for keeping the UK safe from the threat posed by terrorism.

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Can't find what you're looking for?

If you are looking for information held on the counter-terrorism section of the website site prior to 7 May 2010, you can now find it on the archived version of the Home Office website (new window) kept by The National Archives. The Office for Security and Counter-terrorism website (new window) has also been archived by the National Archives.

Regulation of Investigatory Powers Act (RIPA)

General information about RIPA, including codes of practice and forms, is available for download.

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You can help us

If you know of a threat to national security or you want to report suspicious activity, there are several ways to reach us:

You can remain anonymous, and you may save lives. In an emergency you should always call 999.

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