
intelligence agency charged with internal security and domestic counterintelligence activities of the United Kingdom. It is authorized to investigate ... [2 related articles]
Found on
http://www.britannica.com/eb/a-z/m/83

Abbreviation for Military Intelligence, section five, the counter-intelligence agency of the British
intelligence services. Its role is to prevent or investigate espionage, subversion, and...
Found on
http://www.encyclo.co.uk/local/20688

Commonly used but unofficial title for the Security Service.
Found on
http://www.encyclo.co.uk/local/20789

MI5 is the British security Service. It was formerly known as Section 5 of Military Intelligence, and hence the name MI5. Its main job is to protect British secrets at home from foreign spies and to prevent domestic sabotage, subversion and the theft of state secrets.
Found on
http://www.probertencyclopaedia.com/browse/FM.HTM

Military Intelligence 5 - Covername of the Security Service
Found on
http://www.psywar.co.uk/glossary.php

British security service responsible for national security matters within the United Kingdom
Found on
https://www.encyclo.co.uk/local/20490

Abbreviation for Military Intelligence, section five, the counter-intelligence agency of the British intelligence services. Its role is to prevent or investigate espionage, subversion, and sabotage. The headquarters of MI5 are at Thames House, Millbank, London
Found on
https://www.encyclo.co.uk/local/21221
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