Night's Black Agents: Dracula Dossier
The Security Service, also MI5 (Military Intelligence, Section 5), is the United Kingdom’s domestic counter-intelligence and security agency and is part of its intelligence machinery alongside the Secret Intelligence Service (MI6), Government Communications Headquarters (GCHQ) and Defence Intelligence (DI). MI5 is directed by the Joint Intelligence Committee (JIC), and the service is bound by the Security Service Act 1989 and the Intelligence Services Act 1994. The service is directed to protect British parliamentary democracy and economic interests, and counter terrorism and espionage within the UK.
The service has had a national headquarters at Thames House on Millbank in London since 1995, drawing together personnel from a number of locations into a single HQ facility. Thames House was, until March 2013, shared with the Northern Ireland Office (NIO) and is also home to the Joint Terrorism Analysis Centre, a subordinate organisation to the Security Service. The service has offices across the United Kingdom including an HQ in Northern Ireland.
Details of the northern operations centre in Greater Manchester were revealed by the firm who built it. Plans to open the northern operations centre were reported by The Manchester Evening News in February 2005, and plans to open a permanent Scottish office in Glasgow were reported by The Scotsman in January of that year.
It is unclear of the relationship between MI5 and the mysterious organization known as Edom. Whether Edom has infiltrated MI5 entirely or merely uses smokescreens to get MI5 to do their bidding is up for debate.