The Earth Special Intelligence Division, sometimes referred to as Earthforce Special Intelligence Division, was a civilian intelligence service of Earthgov - the governing body of the Earth Alliance. It operated under the direct authority of the President of the Earth Alliance.
In 2260, agent Derek Cranston to track down President Morgan Clark's former physician, Dr. Everett Jacobs, under the claim he had accessed used his security clearance to access highly secret information.
In 2260, David Endawi was sent to Babylon 5 to gather information about the new race who's ship had recently been shown on ISN, destroying an Earth Alliance Starfury. The result of Endawi's investigation was presented to a Senator.