Historically, prime-time television has devoted at least one-third of its programming to crime. The extreme popularity of crime shows continues unabated. From Law & Order to CSI, Americans are riveted by crime TV. Court TV and other cable channels produce true crime series, too, that take viewers through both current crimes and trials and cold cases. Yet, despite efforts in these shows to depict real investigative and legal techniques, chances are, viewers have questions about criminal procedure, legal issues, and related concerns. For instance, why do police get angry when a...