Well that's what the doctor says now but in 2008 he said it was to detect smugglers and drug dealers. l shall write to Dr Agail and suggest he try it out on the HMRC/UKBA officers first and then publish the results. Then maybe he could try it out at the House of Commons? .... loads of subjects there for him!
How does it work? ‘When a person is being deceitful, when a person lies, there is increased brain activity and this is reflected in the face through involuntary facial expressions and blood flow,’ said Prof Ugail.
Humans were known to have a limited repertoire of around 46 facial expressions, known as Facial Action Units, he said.
These were used when programming the software for the facial lie detector.
The thermal camera focused on the region around the eye because the skin is thinner there, making its temperature changes easier to spot. The camera was capable of detecting a warming in the face of 0.1C.
"Sounds good eh? He's tested it out on 40 (yes, 40) volunteers who he asked to answer a series of questions truthfully and then lie ... he got an amazing 70% success! Yep, 70% compared with the traditional lie detector that has a 90% success rate. He thinks he can achieve 90%! Wow, well done Prof! ... and you want to trial this 70% efficient equipment (according to the Prof) at an airport? Err, no 100% then Prof?
The Prof also things that our wonderfully truthful and honest HMRC/UKBA Officers are "very good at spotting people carrying contraband and analysing facial expressions" (2008) but by 2011 he thinks "Border Control Officers are very good at spotting liars!" Prof you should be a comedian. No, l retract that ... you are one!
Our good Prof then goes on to say that he hopes to develop his equipment to detect Alzeimers and dementia. Back to testing it out on HMRC/UKBA Officers and the House of Commons then Prof? :)