Audiobook. The development of a new kind of policing, crime detection, and they were the early pioneers and examples for the world to follow. Only follows the first century, up to the 1920s, though, and not up to today. Dismembering bodies seems to have been a kink or something, there was a lot of it, and then trying to play innocent around all of it. Sounds like a little bit extreme. Interesting comparing it with a CIA counterintelligence book.