Medical examiners are attributing an increasing number of deaths while in police custody to a syndrome called excited delirium. The problem is, there's no proof this syndrome exists. See more »

It's possible that an MRI lie detector could detect truthfulness more accurately than a polygraph machine. How would it work? See more »

Bounty hunting is a legitimate business and an integral part of the American justice system. Find out how bounty hunting works and follow bounty hunter Bob Burton on the search for a fugitive. See more »

A hostage situation places innocent civilians directly in harm's way, and armed intervention places the hostages at even greater risk. Learn how a skilled negotiator uses psychology, instinct and deception to achieve a peaceful end. See more »

Interpol is an international police agency that tracks criminals across national borders. Lean about Interpol and find out how Interpol is organized. See more »

Think you're a good liar? A polygraph might disagree. By monitoring a few physiological signs, these machines know if you're being deceptive, even if you don't have a "tell." See more »

Sure, you've never thrown a brick through a window or knocked over a car, but you just might be an expert on riots. That's because world history is full of these notable events, in which people turn their rage and angst about the world into violence. Find out how much you know about the details of some of the most famous riots of the past with this quiz. See more »

Standard training at your neighborhood police academy: Spritz each recruit in the face with pepper spray. Think you can take it? Maybe you're cut out for the force. See more »

Police chases may seem glamorous on TV, but in real-life they are actually highly regulated by law enforcement codes of conduct. Find out how officers decide whether to commit to a chase, who is liable if a bystander is injured and what else they do. See more »

K-9 cops can sniff out drugs, bombs and suspects that would leave human cops ransacking entire cities. Plus, a good teeth-baring snarl can stop a suspect in his tracks. Learn all about the K-9 police force. See more »