The Security Service, commonly known as MI5, is the United Kingdom's domestic counter-intelligence and security agency and is part of its intelligence machinery alongside the Secret Intelligence Servi
Thames House, London
Part of Thames House
Intelligence Services Memorial, Westminster Abbey, honouring all members of the UK's intelligence services since 1909. The inscription reads: "Recognising service at home and abroad protecting the United Kingdom".
Dame Stella Rimington, the first female Director General of MI5