Original sentence: Cal Lightman and his colleagues in The Lightman Group accept assignments from third parties (commonly local and federal law enforcement), and assist in investigations, reaching the truth through applied psychology: interpreting microexpressions, through the Facial Action Coding System, and body language.Lightman's character is based on Paul Ekman's work, noted psychologist and expert on body language and facial expressions, although the show begins with a disclaimer stating that the Lie to Me* characters are not based on real persons
Edited sentence: Cal Lightman and his colleagues in The Lightman Group accept assignments from third parties (commonly local and federal law enforcement), and assist in investigations, reaching the truth through applied psychology: interpreting microexpressions, through the Facial Action Coding System, and body language..