An interesting topic is detection of truth or falsehood in face-to-face interviews.
BTW, we published two papers about detection of truth or falsehood in textual stories:
(1) HaCohen-Kerner, Y., Dilmon, R., Friedlich, S., & Cohen, D. N. (2016). Classifying true and false Hebrew stories using word N-Grams. Cybernetics and Systems, 47(8), 629-649.
(2) HaCohen-Kerner, Y., Dilmon, R., Friedlich, S., & Cohen, D. N. (2015, October). Distinguishing between True and False Stories using various Linguistic Features. In Proceedings of the 29th Pacific Asia Conference on Language, Information and Computation: Posters (pp. 176-186).