Available through Calibre Press, "Into the Kill Zone" by David Klinger presents firsthand accounts of the role that deadly force plays in American police work. Klinger, a cop turned professor, interviewed scores of officers who have shot people in the course of their duties and turned the information into real-world advice for today's officers. It tells how novice officers are trained to think about and use the power they have over life and death, explains how cops live with the responsibility that comes from the barrels of their guns, reports how officers often hold their fire when they clearly could have shot, presents hair-raising accounts of what it's like to be involved in shoot-outs and details how shooting someone affects officers who pull the trigger.