It isn’t easy to interrogate psychopaths and criminals, especially when what they can tell you will provide crucial information to solving a case. Experts at interrogation have to undergo intensive training for this, to learn about the science of it, as there are tricks or tactics to use to draw the truth from the one being questioned.

This documentary digs deep into the tactics and enumerates the ways the brain and body responds to interrogations or why people fail at lie detection tests. The film features research and data, as well as an MRI scan in order to illustrate just what happens to the body during an interrogation.

It isn’t easy to interrogate psychopaths and criminals, especially when what they can tell you will provide crucial information to solving a case. Experts at interrogation have to undergo intensive training for this, to learn about the science of it, as there are tricks or tactics to use to draw the truth from the one being questioned.

This documentary digs deep into the tactics and enumerates the ways the brain and body responds to interrogations or why people fail at lie detection tests. The film features research and data, as well as an MRI scan in order to illustrate just what happens to the body during an interrogation.