Deputy Chief Hagin joined the Atlanta Police Department in 1991 as a second-generation Atlanta Police Officer. After graduating from the police academy, he was assigned to Zone 1 where he served until 1993.
In 1993 he joined the DUI Task Force as a part of the Special Operations Section. In 1995, he was selected as an Explosive Detection Canine Handler. With this assignment, he received specialized training in San Antonio, Texas, at Lackland Air Force Base, and a federal certification as a bomb dog handler. Because the K9 Explosive Detection Unit was integral to the Atlanta Olympics, he received additional specialized training certifications.
In 1997, Hagin was promoted to Sergeant and assigned to Field Operations. A year and a half later, he was again assigned to Special Operations, this time as a Sergeant on the Motors Squad. As a Motors supervisor, he planned and executed tactical operations related to dignitary visits and special events in the City. In 2001, Hagin was promoted to Lieutenant, assigned to Zones 1 and 5 and was later assigned as the Assistant Zone Commander in Zone 5. From 2003 to 2007, Hagin was appointed to Major and served as the Zone 5 Commander overseeing police services for the Downtown and Midtown areas.
In 2007, Hagin was transferred to the Office of Professional Standards where he managed several internal investigations and the disciplinary process for the department. In 2010, he was transferred to the Special Operations Section as the Commander responsible to various specialized units, several events and dignitary visits. In 2012, Hagin was transferred to the Airport where he served until 2018. While at the world’s busiest airport, he was responsible for all aspects of police operations to include Patrol, Investigations, Explosive Detection Canine Teams and an Explosive Ordinance Disposal Unit. Hagin also formed and directed a highly trained tactical team at the airport known as the Airport Special Response Unit with advanced training and weapons. He also served as the Second Vice President for the Airport Law Enforcement Agencies Network, Aviation Security Advisory Committee in Washington D.C. and the Quality Action Team for the TSA Explosive Detection Canine Program based in San Antonio, Texas.
Major Hagin holds a BA in Criminal Justice and Master of Public Administration from Columbus State University, Command College and is a Leadership Atlanta graduate.