Interviews: "Make 'Em Do It Backwards"!

Theories abound about how best to tell if a suspect is lying to you, short of hooking him up to a polygraph or CVSA, and even then...it's only a tool. We hear about kenesics, the use of body language and movement, different cues to look for, and on and on. Well, here's one more for your consideration: Make 'em tell it backwards. That's right. One more wrench in your toolchest should be having your subject recount all the facts for you as always, then....have them do it backwards in a timeline. One of the best ways to obtain cues to possible deception may be simply to have the subject tell his or her story backwards. You will find it's much more difficult for a person who is fabricating a story, alibi or incident to do so while telling it in a reverse or backwards timeline. In doing so you will start to see a pattern within the context of the interview:
Extreme Brevity: You will get very condensed versions.
Sparse Details: When lying, subjects will tend to offer few details generally speaking.
Justifications: When details are offered in the fabrications, they will tend to be in the form of justifications or rationalizations.
Non-verbal giveaways: During deception, the subjects may more often press their lips together firmly and look away like they were trying to think, to concentrate hard. Also their hand gestures may be different. When being truthful, they may tend to gesture away from their body, the opposite -- toward their chest -- when making up stories. And, when lying, grooming gestures may be more evident. These cues are all based on you obtaining a baseline of truth prior to your interview. You will notice, that Kenesics do play a part in this style of interview. Talk to your subject, get their baseline, then give it a try.