David Diaz has taught human tracking, anti and counter tracking tactics, techniques and procedures on five continents: on deserts, jungles to the mountains, and into the urban streets. He is a retired US Army Special Forces/Marine with 33 years of experience in human tracking. Diaz’s unique skill-set has not only bolstered the efforts of United States conventional and special operational units, he has also trained elements of various Allied and NATO troops. Diaz is recognized throughout the military, law enforcement and other agencies, along with the petroleum industries as a subject matter expert in the theory and practice of human tracking. Diaz provides a very realistic empirical and challenging program of instruction that always exceeds the client’s needs. He has fine-tuned his craft through many years of dedication and studying from the finest trackers throughout the world including the Dyaks/Iban of Brunei and Malaysia, Negritos Aborigines of the Philippines, the San of Botswana, US Marines in Vietnam that learned their skill from the Montagnards of the highlands of Vietnam, Laos and Cambodia. Diaz has also exchanged TTPs with Sayeret Ha’Druzim and Ha’Bedouin Trackers of Israel. He was also exposed to the Rhodesian version of human tracking developed by Mr. Alan Savory. It’s not beneath Diaz to have also learned from military Privates with innovative tracking ideas. Due to Diaz’ exposure to a broad and diverse range of teachings, he has developed various systematic approaches to the art and science of human tracking. Diaz is a published author on the subject of human tracking. His first book Tracking: Signs of Man, Signs of Hope, published by Lyons Press in 2005 is considered a seminal manual in the field of human tracking. The Second Edition was up-dated and published in 2013 entitled Tracking Humans. Presently, through a Small Disabled Veteran Owned Business, Diaz teaches Human Tracking to very exclusive small elements within Law Enforcement, Search and Rescue, US Military, NATO, Allied Forces. Presently Diaz teaches under the IMTT as the Human Tracking Division in Finland.