Mark Delaney currently serves in the role of Special Agent in Charge (SAC) of the Tennessee Bureau of Investigation (TBI) Tennessee Dangerous Drugs Task Force (TDDTF). SAC Delaney is a twenty-six-year law enforcement veteran with over twenty-three years of experience as a Tennessee Bureau of Investigation Special Agent. SAC Delaney spent approximately fifteen years assigned as a Special Agent within the TBI Drug Investigation Division assigned to the East Tennessee area. During this time, SAC Delaney was assigned as a Task Force Officer with the United States Department of Justice Drug Enforcement Administration.