Hey HN. An update on this. It turns out, iBorderCtrl are using microexpressions, which is to say, Eckman's work. This is from the Commission's website, the link posted here by another user:

The unique approach to ‘deception detection’ analyses the micro-expressions of travellers to figure out if the interviewee is lying.

http://ec.europa.eu/research/infocentre/article_en.cfm?artid...