|Tennessee Bureau of Investigation|
|Formed||March 27, 1980|
It was established by the Tennessee General Assembly on March 27, 1980, as an independent state agency. The TBI manages the state's three crime labs, assists local law enforcement in investigating major crimes, and conducts special investigations related to illegal drugs, fugitives, public corruption, official misconduct, organized crime, domestic terrorism, healthcare fraud, arson, explosives, and patient abuse.
The TBI has statutory responsibility for collecting state crime statistics, which are published in an annual "Crime in Tennessee" report. It also manages a TBI Most Wanted list, AMBER Alert program, and statewide registries of sex offenders and methamphetamine offenders. 
The TBI is headed by a director who is appointed by the governor to a six-year term. The director is also a member of the Tennessee Law Enforcement Planning Commission. The current director is Former Knoxville Police Chief David Rausch, who was appointed in 2018. He was appointed after the previous Director Mark Gwyn retired less than 2 years into his third term amid controversies regarding nepotism in his hiring practices  followed by a scathing audit by the Comptroller's office which found he had overspent his budget for four years running.  The interim director Jason Locke also came under investigation the day David Rausch was appointed due to a complaint received from his wife describing misuse of state funds during an affair with another state employee at the Tennessee Department of Mental Health and Substance Abuse Services. 
Currently, the agency employs about 500 people, almost half of whom are commissioned officers. 
The motto of the TBI is "That guilt shall not escape, nor innocence suffer".
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