Director General of MI5

The Director General of the Security Service is the head of the Security Service (commonly known as MI5), the United Kingdom's internal counter-intelligence and security agency. The Director-General is assisted by a Deputy Director-General and an Assistant Director-General, and reports to the Home Secretary, although the Security Service is not formally part of the Home Office.

The present Director General is Andrew Parker, who has held the role since April 2013.

Directors General have been:

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