Officer Zirk has 24 years of law enforcement experience in conjunction with a B.S. degree in Criminal Justice from the University of Tennessee at Chattanooga. He began his career with the Hamilton County Sheriff’s Department as a Corrections Officer. While at the jail, he was a member of the SRT Team, the Corrections I.D. Specialist and instructed numerous training classes.
In 2002, he was transferred to the patrol division and graduated as Class President of Class 993 at the Tennessee Law Enforcement Training Academy. He went on to join the Tennessee Highway Patrol as a State Trooper and graduated from the THP Training Academy as Class President of Class 602.
In 2005 he joined the Chattanooga Police Department and graduated from the academy as Class President of CPD Class 2005-1. He was first assigned to the patrol division and worked Fox team which is the East Lake area of the city.
Officer Zirk was awarded the Rookie of the Year in 2007. In May of 2008, he was selected as a member of the Chattanooga SWAT team and served as a breacher and sniper. In September of 2008, he was assigned to the Training Division as a police instructor. During his time with the department he has completed the Instructor Development Course, and he has been certified as a Field Training Officer, and an instructor in Defensive Tactics as well as tactical rifle and pistol. As a Master Instructor, he can serve as an expert in related fields of expertise and lesson plan development. In addition, he is versed in DOE training protocol: (SAT, (PBT), (TSD), (ISD), (LMS). He is an Advanced Use of Force Analyst and serves as a Use of Force consultant on a regular basis for the City of Chattanooga and attorneys across the state.