History[ edit ] Organised intelligence collection and planning for the government of the United Kingdom and the British Empire was established during the 19th century. The War Officeresponsible for the administration of the British Armyformed the Intelligence Branch inwhich became the Directorate of Military Intelligence. The Secret Service Bureau was founded in as a joint initiative of the Admiralty and the War Office to control secret intelligence operations in the UK and overseas, particularly concentrating on the activities of the Imperial German government.
The Deputy Director General is responsible for the operational activity of the service, being responsible for four branches; international counter-terrorism, National Security Advice Centre counter proliferation and counter espionageIrish and domestic counter-terrorism and technical and British intel operations.
Judicial oversight of the service's conduct is exercised by the Investigatory Powers Tribunal. Information held by the service is exempt from disclosure under section 23 of the Freedom of Information Act The Bureau was split into naval and army sections which, over time, specialised in foreign target espionage and internal counter-espionage activities respectively.
This specialisation was a result of the Admiralty intelligence requirements related to the maritime strength of the Imperial German Navy. This specialisation was formalised prior to and the beginning of World War Iwith the two sections undergoing a number of administrative changes and the home section becoming Directorate of Military Intelligence Section 5 MI5the name by which it is still known in popular culture.
Its role was originally quite restricted; existing purely to ensure national security through counter-espionage.
With a small staff and working in conjunction with the Special Branch of the Metropolitan Policethe service was responsible for overall direction and the identification of foreign agents, whilst Special Branch provided the manpower for the investigation of their affairs, arrest and interrogation.
These arrests have provoked recent historical controversy. According to the official history of MI5, the actual number of agents identified was 22 and Kell had started sending out letters to local police forces on 29 July giving them advance warning of arrests to be made as soon as war was declared.
Portsmouth Constabulary jumped the gun and arrested one on 3 August, and not all of the 22 were in custody by the time that McKenna made his speech, but the official history regards the incident as a devastating blow to Imperial Germany which deprived them of their entire spy ring, and specifically upset the Kaiser.
In his article "Entering the Lists" was published in the journal Intelligence and National Security outlining the products of his research into recently opened files. He later wrote another article, "Re-entering the Lists", which asserted that the list of those arrested published in the official history  was concocted from later case histories.
Throughout World War I, Germany continued trying to infiltrate Britain but MI5 was able to identify most, if not all, of the agents dispatched. MI5 used a method that depended on strict control of entry and exit to the country and, crucially, large-scale inspection of mail.
In post-war years, attention turned to attempts by the Soviet Union and the Comintern to surreptitiously support revolutionary activities within Britain. MI5's expertise, combined with the early incompetence of the Soviets, meant the bureau was successful once more in correctly identifying and closely monitoring these activities.
Due to the spy hysteria, MI5 had been formed with far more resources than it actually needed to track down German spies. As is common within governmental bureaucracies, this caused the service to expand its role, to use its spare resources.
MI5 acquired many additional responsibilities during the war. Most significantly, its strict counter-espionage role blurred considerably. It became a much more political role, involving the surveillance not merely of foreign agents but also of pacifist and anti- conscription organisations, and of organised labour.
This was justified through the common belief that foreign influence was at the root of these organisations.by Jonas E. Alexis. Haaretz has recently published a stunning article entitled: “Coat Bomb and Explosive Prosthesis: British Intel Files Reveal How the Zionist Stern Gang Terrorized London.”This is quite interesting: “Records declassified this week by Britain’s Security Service, MI5, reveal an urgent terrorist threat that Britain faced in the 20th century.
British Intel Files: Khazarian Mafia “Terrorized London” “Records declassified this week by Britain’s Security Service, MI5, reveal an urgent terrorist threat that Britain faced in .
British intelligence agencies snubbed Republican Congressman Devin Nunes because they feared he was only 'trying to stir up a controversy.'. House Intelligence Committee Chairman Devin Nunes (R-Calif.) tried unsuccessfully earlier this month to meet with the heads of three British intelligence agencies in his efforts to probe the.
Apr 13, · British and other European intelligence agencies intercepted communications between Trump associates and Russian officials during the campaign and passed on those. The chairman of the House Intelligence Committee flew to London to gather intel on Christopher Steele, the former British intelligence officer who compiled the dossier alleging Trump-campaign ties.