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The Kingsport Police Department’s Professional Standards Unit was officially formed in 2014 with the goal of unifying several pre-existing divisions of the department under one central umbrella for the purpose of maintaining nationally recognized standards of excellence in law enforcement. The divisions of the department that make up the Professional Standards Unit include the Training Division, the Internal Affairs Division, the Accreditation Manager, and the Public Information Officer.

Lieutenant Justin Quillin received his Associate of Science in General Studies from Northeast State Community College. He joined the Kingsport Police Department in 1995 and has served in a variety of capacities including Patrol Officer, Community Police, a supervisor in both the Training Unit and Patrol Division, Administrative Lieutenant, and Jail Administrator. Lieutenant Quillin is a graduate of the F.B.I. National Academy. He has fulfilled several specialized roles including S.W.A.T. Operator, Honor Guard Team member, and Department Chaplain. He was promoted to Lieutenant in May of 2013 and was assigned to the Patrol Power Shift. He currently oversees the Professional Standards Unit.