Pingcheng Police Files

Behind dozens of murders, each with its own distinctive circumstances, how did the police cut through the fog and catch the real killer? What dark path did the suspects take? This novel, based on real cases, offers a detailed account of how dozens of investigative techniques are used in actual police work, including DNA matching, gait tracking, facial recognition, psychological lie detection, bloodhound tracking, identifying pickpockets, recognizing troublemakers, and reconstructing crime scenes. Open this book and read on to find out.