evidence: The Georgia Bureau of Investigation (GBI) is the state bureau of investigation of the U.S. state of Georgia. It is an independent, statewide agency that provides assistance to Georgia's criminal justice system in the areas of criminal investigations, forensic laboratory services, and computerized criminal justice information. Its headquarters is located in unincorporated DeKalb County, near Decatur and in Greater Atlanta.[5] [...] - ^ "GBI History | Georgia Bureau of Investigation". Gbi.georgia.gov. 1974-02-28. Retrieved 2017-02-23.