I’m Dennis Root, and I am proud to introduce you to my book, Force Concepts.  I have 27 years of law enforcement experience and over 35 years teaching force-related topics. I understand the challenges you face and the importance of mastering force investigative techniques. My goal is to share my expertise and guide you towards becoming an exceptional force investigator. I wrote this book for you, the professional investigator, and for all those who want to better understand the realities of force. 

Violent physical attacks, shootings, and homicides are examples of acts of violence that require investigators to have specific skills. Imagine being one of the few professional investigators who possess those abilities.

Force Concepts will teach you what to look for and how to evaluate the evidence these life-changing events might leave behind. You will understand real-world factors that help you see directly into the core of the force encounter. You will also learn to recognize how fear impacts human performance and how to investigate that fear.

One of the main goals of Force Concepts is to give you insights and investigative strategies for separating self-defense from criminal action. You will learn practical investigative principles that you can use in investigations involving the use of force by police and for self-defense.

Force Concepts will help you, the professional investigator, take your investigative skills to the next level.