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Introduction

“MI5 investigates threats to national security through the gathering of secret intelligence and by working closely with other organisations and government departments. We do this within a strict framework of legislation and oversight to ensure our investigative powers are only used where it is necessary and proportionate to do so.”

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Latest News

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Counter Terrorism Operations Centre unveiled

The first elements of the new Counter Terrorism Operations Centre (CTOC) in London have been unveiled.

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MI5 celebrates Pride Month 2021

MI5 staff are celebrating Pride Month 2021 by flying the Progress Pride Flag above our headquarters.

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