How We Work

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Who we are
Who we are

Find out more about MI5’s mission and core values; our people who work to keep the country safe; and our rich and varied history.
What we do
What we do

Find out about the core threats to national security that MI5 exists to protect against.
How we work
How we work

Discover how MI5 works to protect against threats to national security through intelligence gathering techniques, partnerships and legislation.
What you can do
What you can do

Find out how you can play your part in keeping the country safe – either as a member of the public, or as a potential new recruit.
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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.”