| Tennessee Bureau of Investigation | |
|---|---|
 | |
| Abbreviation | TBI |
| Motto | "That guilt shall not escape, nor innocence suffer" |
| Agency overview | |
| Formed | March 27, 1980 |
| Preceding agency |
|
| Employees | 550 (2017 est.)[1] |
| Annual budget | $147,156,800 |
| Jurisdictional structure | |
| Operations jurisdiction | Tennessee, United States of America |
| Size | 42,143 sq mi (109,150 km2) |
| Population | 7,126,489 (2023 est.) |
| Operational structure | |
| Headquarters | Nashville, Tennessee |
| Website | |
| tn | |
The Tennessee Bureau of Investigation (TBI) is the state bureau of investigation of the state of Tennessee. It has statutory authority to conduct criminal investigations and make arrests of crimes occurring throughout the state. The bureau is analogous to the FBI on the federal level.