Zack Harkness has dedicated his life to public safety, and continues to serve both his community and his country at every opportunity. A dedicated public safety professional, Zack will continue serving the residents of Liberty County as the Constable of Precinct 6. 

Since beginning his career in law enforcement with the Cleveland Police Department in 2006, Zack has accumulated over 4,300 continuing education hours.  He was also one of 28 students to graduate from the prestigious University of Tennessee’s National Forensic Academy in 2018. Additionally, Zack holds a Master Peace Officers License, an advanced instructor license, and as a licensed firearm instructor he regularly volunteers to teach the Texas License to Carry Course to citizens in Liberty County.















Zack is currently employed as an investigator with the Liberty County Sheriff’s Office. Through his employment with the Liberty County Sheriff’s Office, Zack is a member of the Unmanned Aircraft Unit and maintains a Federal Aviation  Administration Unmanned Aircraft License, and is a member of the Liberty County Special Response Team.  He is a sworn member of the U.S. Marshals Office Joint East Texas Fugitive Task Force and maintains the requirements to be a reserve officer commissioned with the Cleveland Police Department. 

Many Hats. One Purpose
  • Sheriff's Office Investigator
  • Police Officer
  • Firefighter
  • Emergency Medical Technician
  • Coast Guard Reserve
  • Family Man
Support the Campaign DONATE NOW

While serving his community as a full-time peace officer, Zack is dedicated to serving his community in other avenues of public safety as well.  As a certified Firefighter/Emergency Medical Technician, he regularly works for the Cleveland Fire Department and is call responsive in the event of an emergency. 


One of the most important avenues of Zack’s service is fulfilling his duties as a member of the United States Coast Guard Reserve out of Sector Houston where he serves as a Maritime Law Enforcement Specialist.  Zack has served his country through deployments to Iraq, Kuwait, Puerto Rico, the U.S. Virgin Islands, and deployments stateside. 


Locally, Zack is a member of the Cleveland Lions Club, the Cleveland American Legion, the Big Thicket Duck’s Unlimited Chapter, the Cleveland VFW lifetime member, and he attends First Baptist Church of Cleveland. 


Zack is married to Jennifer Bergman-Harkness, a fifth generation Cleveland resident, local attorney and Cleveland City Council Member. In March, 2019, they became the proud parents of of twins, Ella and Hudson Harkness.  Lastly, Zack and Jennifer are the proud owners of the Berg’s and the Bees Wildflower Honey Company where they harvest and sell local honey, diligently working for the conservation of honey bees in Southeast Texas.