- You may also be looking for Starfleet Intelligence (Twilight universe) or Starfleet Intelligence (Vanguard Command).
Starfleet Intelligence, also known as Starfleet Intelligence Command, was a branch of Starfleet responsible for gathering and analyzing information concerning neighboring powers in the galaxy, and for carrying out covert investigations regarding possible threats to the United Federation of Planets. The organization was unaffiliated with Section 31.
For field operations, Starfleet Intelligence employed agents who were authorized to perform undercover investigations. Starfleet Intelligence agents (or "SI agents") reported to division heads who oversaw their agents' missions. The head of the organization was known as the Chief of Starfleet Intelligence.