Hands Up; Or, Thirty-Five Years of Detective Life in the Mountains and on the Plainsreminiscences by General D. J. Cook, Chief of the Rocky Mountains Detective Association

This is the real thing: an 1882 memoir from a man who hunted outlaws across the Rocky Mountains and the Great Plains when the West was still wild. General D. J. Cook served as chief of the Rocky Mountain Detective Association, and in these pages he recalls thirty-five years of chasing horse thieves, confronting guerrilla bands, and bringing down criminals who terrorized the frontier towns of Colorado and beyond. There is no nostalgia here, no mythmaking Cook was a professional lawman operating in a world where violence was immediate and justice was often administered with a gun rather than a courtroom. The prose crackles with the specifics of his trade: how detectives tracked men across impossible terrain, how they earned grudging respect from the very outlaws they pursued, how they built an organization to fill the gap where formal law enforcement could not reach. This is primary source material from a vanished era, the unvarnished account of a man who lived the job rather than imagined it.