Stu Dunn
Stu Dunn
Dr. Paul Ekman
Micro Expressions
Body Language
SDL Behavioural Science Consultancy
StatisticsSDL helps our clients to understand non-verbal communication and to avoid deception. We do this by providing online courses, training and specialist advice in areas of behaviour, emotional analysis and deception detection.

"Encouraging honest communication in business, personal and family interactions through education."

SDL's Mission Statement: To be the worldwide leader in consulting and training in the area of facial expressions, non verbal behaviour and deception detection for both public and private sectors.

Our Clientele: SDL has worked with people from New Zealand, Australia, United States, United Kingdom, India, Canada, Germany, Afghanistan, Portugal, Poland, Switzerland, Macedonia and Sri Lanka so far.

To view SDL's Online and 2-Day training and consulting services, please visit the services page.

SDL is New Zealand's first Facial Action Coding System (FACS) Certified Consulting.

To read more about Stu's book; True Lies: A Guide to Reading Faces, Interpreting Body Language and Detecting Deception in the Real World, click here.


Guideline to Catching Liars by Examining Nonverbal and Verbal Behaviour - Interviewing to Detect Deception (11): Detecting deception may be the easiest during the first interview. During the first interview liars may not be fully prepared, they may not have rehearsed their story or worked out their answering strategy. By the second interview there is an increased chance of behavioural synchronising - the liar may mirror the interviewer's behaviour, posture, smiling behaviour and even their voice volume and speed. Thus the behaviour of the interviewee may become influenced by the behaviour of the interviewer, which complicates interpreting their behaviour.
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