Fascinating article here with lots of research possibilities.

http://www.couriermail.com.au/news/technology/inside-etac-the-school-for-deception-detection-run-by-ei-asia-pacific/story-fn5kftjr-1226406350255

It's about a course called "Establishing Truth and Credibility'", or "ETaC'".
The course is based on the work of Dr Paul Ekman - whose work was made famous by the television show Lie to Me.

It is part of what has been a recent expansion of Ekman's work - hoping to make a profitable global business out of what many have considered to be solely the domain of you-wouldn't-believe-it shows like The Mentalist or Sherlock Holmes.

.......
"This course represents a 'new frontier' of emotional skills. It takes the latest rigorous science and understanding about the nature of emotions, and the nature of trust and deception, into day-to-day workplaces, people's lives and relationships. Translating this into the delivery of practical skills-based training.'"


Also lists Five ways to spot a Liar.

It turns out body language is the least reliable indicator of deception of all of the communication channels. People who are lying make less eye contact. Dead wrong.