The science featured in Lie to Me is based on deception detection, which influenced the Lie to Me series. Dr. Ekman taught the cast and crew about the science of deception detection. For more details, you can read about the science of Lie to Me.
Paul Ekman is a well-known psychologist and co-discoverer of micro expressions. He was named one of the 100 most influential people in the world by TIME magazine in 2009. He has worked with many government agencies, domestic and abroad. Dr. Ekman has compiled over 50 years of his research to create comprehensive training tools to read the hidden emotions of those around you.