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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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MI5 has a crèche for baby spooks.

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Latest News

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September 2019 release of historical MI5 files

MI5 has released a new batch of historical files to The National Archives, where they are now available to view. The...

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MI5 supports National Inclusion Week

For the fourth year in a row, MI5 is joining in with celebrations of National Inclusion Week.

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