About the Author
Duncan B. Lingle is the owner, and Chief Instructor, of TRAEX Tactical Solutions LLC. He brings over 32 years of law enforcement experience, as both a Special Agent of the US Department of Justice, Drug Enforcement Administration (DEA), and a Police Office for the Cheyenne, Wyoming Police Department, to his training courses and seminars. In 2018, and after 28 years of service, he retired as the Section Chief of Office of Special Projects/Strategic Planning and Support Section, and previously the Office of Global Enforcement at DEA Headquarters.