# Joint Terrorism Task Force
**Aliases:** JTTF
**Entity class:** Multiagency counterterrorism investigative task force
## Definition
A **Joint Terrorism Task Force (JTTF)** is an FBI-led local or regional multiagency team of investigators, analysts, linguists, tactical personnel, and other specialists who investigate terrorism threats and share operational information. The FBI reports approximately 200 JTTFs, with at least one associated with each field office.
## Relationships
- **led by:** [[wiki/Federal Bureau of Investigation|FBI]].
- **national coordination:** [[wiki/National Joint Terrorism Task Force|NJTTF]].
- **partners with:** federal, state, local, tribal, territorial, military, and other agencies under applicable authorities.
- **national knowledge layer:** [[wiki/National Counterterrorism Center|NCTC]] and [[wiki/Terrorist Identities Datamart Environment|TIDE]].
## Sources / Provenance
- [FBI — Joint Terrorism Task Forces](https://www.fbi.gov/investigate/terrorism/joint-terrorism-task-forces)