Lieutenant Ellis began his law enforcement career in 2004 with the Watertown Police Department, before joining the Portland Police Department in 2005. He has held the ranks of Patrol Officer, Field Training Officer, Corporal, and Sergeant, before being promoted to Lieutenant in 2017. He supervises and oversees the Administrative Division, which includes building/fleet maintenance, training, and quartermaster duties. He also serves as the agency's Firearms and Tactics Instructor. He is a Senior Operator with the Sumner County Emergency Response Team (ERT), which is a county-wide special weapons and tactics (SWAT) unit. He serves as an Adjunct Instructor at the Tennessee Law Enforcement Training Academy on the subjects of Firearms and Basic SWAT.
Lieutenant Ellis has attended and earned certification in many specialized schools throughout his career including: Instructor development, Firearms Instructor, Officer Survival, Defensive Tactics, Basic and Advanced SWAT, Weapons of Mass Destruction Advanced Tactical Planning and Operator, AR-15 Basic and Advanced Operator Course.
Lieutenant Ellis is a 1999 graduate of White House High School, and a 2014 graduate of Trevecca Nazarene University. He has been commended multiple times for work with PPD and ERT.