To report an imminent threat call 999 or ring the Anti-Terrorist Hotline on 0800 789 321
Current national threat level: SUBSTANTIAL Read more about threat levels >>
To report an imminent threat call 999 or ring the Anti-Terrorist Hotline on 0800 789 321
Current national threat level: SUBSTANTIAL Read more about threat levels >>
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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.”
Latest News
view ALL NewsMI5 commemorates VE Day 75
Like the rest of the country, MI5 pays tribute to the service and sacrifice of the entire Second World War generation
MI5 headquarters lights up blue for carers
The Thames House entrance archway lit up blue on Thursday 16 April alongside other UK landmarks to show our...
MI5 issues apology to LGBT community for historical treatment
The Director General has expressed MI5's "regret and shame" for historical treatment of LGBT community
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