The Strategic Information Service (SIS) is the Republic's premiere intelligence and espionage agency. Chartered and overseen by the Galactic Senate, the SIS is responsible for information gathering and covert operations both inside and out of Republic space, as well as for assisting the military, local law enforcement and the Jedi Order.
The SIS is the latest in a long line of Republic espionage agencies founded and disbanded over the centuries. Originally a monitoring and decryption arm of the Senate library, the SIS rapidly expanded during the war against the Empire. It remains smaller, more focused and comparatively underfunded in comparison to Imperial Intelligence, but has proven its effectiveness many times over.
Although by no means a secret organization, the SIS keeps a relatively low profile. SIS operations are rarely revealed, and its administrators almost never appear alongside Senators or other officials. This is a public relations gambit‒the SIS believes that the Republic citizenry would be uncomfortable with the nature of its work, and so avoids attracting attention and unwanted questions.