Truth or Lie?

Do you think this guy is lying? Why do you think so?

For further opinions, visit Humintell’s post on the subject here.


About Stu Dunn

Stu Dunn, Founder of SDL Behavioural Science Consultancy and Head Consultant, International Speaker, FACS Certified, Micro Expressions, Body Language & Deception Detection Expert. Stu Dunn is the first Facial Action Coding System (FACS) Certified consultant in New Zealand. Stu has had a natural interest in human behaviour and non verbal communication for most of his life. Stu's continued study of psychology, body language, micro expressions and FACS has helped him become New Zealand's leading expert in micro expressions, emotional surveillance and FACS (FACS is the most detailed de-coding of the face, and universally recognized by psychologists and physiologists worldwide). Stu is also one of the first in the world to achieve Master Level on Humintell's Mix Elite Micro Expressions software. Stu has been studying body language since 2001, and has worked with participants from New Zealand, Australia, United States, United Kingdom, India, Canada, Germany, Afghanistan, Portugal, Switzerland, Poland, Macedonia and Sri Lanka so far. This includes working with participants from the NZ Defence, IRD Fraud Investigators, Sri Lankan Customs, Homeland Security, Telecom NZ and Vodafone to name a few. Stu's areas of expertise include: micro expressions, emotions and emotional surveillance, body language, deception, interviewing, training, business consulting, video analysis (evaluating truthfulness & credibility), FACS coding (videos, pictures and animation), sales training, assistance with criminal and private investigations.
This entry was posted in Evaluating Truthfulness and Credibility and tagged , , , , . Bookmark the permalink.

5 Responses to Truth or Lie?

  1. Luca says:

    So I found the video on youtube which makes it easier to spot things as it’s in a better quality and you can play the video in slow-motion:
    I’m pretty sure he’s a liar, can’t put my finger on the exact point but there are too many inconsistencies in his body language and every time he denies what he’s done (or not done) there’s no eye contact and he’s looking down, but otherwise, he’s making eye contact normally and also he doesn’t appear the kind of person that can’t hold eye contact because of lack of confidence or whatever, also he seems to get pretty nervous when the reporter asks him directly whether this picture of the guy trashing this muni bus was not him, he suddenly starts chewing on his gum really intensely… Well, I’m no expert and I’ve just started learning about body language, so I might be completely wrong, but in my humble opinion, this guy is lying. What do you think, Stu?

    • Luca says:

      Just noticed that you’ve already put the link to the youtube video here ^^ haha shouldn’t have copy-pasted what I posted on Humintell’s webpage without checking your page first ^^ sorry ’bout that, my bad

  2. SDL says:

    00:00:20 Looks away before answering
    00:03:10 Smile, happiness / duping delight
    00:07:20 Looks away when he says; “And that’s pretty much how I found out everything”. To me this doesn’t look honest.
    00:41:10 Eyelids raised – perhaps fear?
    00:42:06 Still smiling and shaking his head. Possible that he can’t believe the situation
    00:47:28 Shakes head while saying; “I have numerous people who could back me up”
    01:03:23 Reporter’s expression: Priceless. Perhaps disbelief?
    01:05:11 Fear – eyelids raised with nervous smile. Reporter showing signs of disgust?
    01:09.10 “Anybody who knows me knows I’m not like this”, while smiling.
    01:13:03 Fear again? Same wide eyes from Tony, same look of disbelief from the reporter
    01:32:25 In Tony’s denial; “Million percent, was not me” Non contracted denial is common with lies
    01:36.01 Flash of anger and the smile fades for a moment.
    01:38:13 “I swear” with a shake of the head.
    01:39:22 Chewing gum and smiling
    01:40:05 Another flash of anger
    Overall, to me Tony comes across with “What are you doing to do?” attitude, not taking the interview seriously by chewing gum and smiling the whole way through. The smiles at times I think could be interpreted as duping delight (smiling because his lies are being believed). There was also signs of fear (the raised eyelids mainly), which he did while explaining what I (and it appears the reporter) considers to be pretty poor excuses – so this could be the fear that appears with detection apprehension.

    In my opinion, without having more footage, I’d suggest that Tony’s story doesn’t come across as reliable. Perhaps its the constant smiling? This is the reason a good baseline is necessary.

    Add on to this:
    The answer? Tony was indeed telling the truth.

    He did not vandalize the muni bus as police arrested Gregory Tyler Graniss, 22, of San Francisco after the now infamous picture was circulated around the internet. Graniss has admitted that the person in the picture is him and is currently out on $40,000 bail. See more here:

  3. Luca says:

    Brilliant answer, Stu. Thanks a lot for all the details, this is a huge help for me as with a detailed answer like this I know exactly what I have to look out for and what exactly gave me that “gut feeling” in the first place… You’re brilliant, Stu

  4. SDL says:

    Thanks Luca – and you’re very welcome! Stu

Leave a Reply

Fill in your details below or click an icon to log in: Logo

You are commenting using your account. Log Out /  Change )

Google photo

You are commenting using your Google account. Log Out /  Change )

Twitter picture

You are commenting using your Twitter account. Log Out /  Change )

Facebook photo

You are commenting using your Facebook account. Log Out /  Change )

Connecting to %s