Warding Off Evildoers not only examines forensic experts' observations and analyses of evildoers, but also forensic science findings. It is based on research conducted by several hundred scientists exploring various aspects of evildoing. Their research helps unearth the nature and identity of who evildoers are, how they got that way, and most crucially, how we can protect ourselves from them. Joan Arehart-Treichel makes the argument that there are evil impulses in all of us and offers suggestions, based on experts' observations and analyses as well as science, about how we can keep from becoming evildoers ourselves or turning our children into them.