| For someone who has not actually served in a role with training (like that which you describe) you are remarkably astute about the realities of catching liars. It takes considerable planning and man hours to uncover a truth from an individual intent to keep it hidden, often involving stress, deprivation of some sort and considerable psychological manipulation. Not even necessarily a lie, simply a truth they are obfuscating. Since you are interested you could do worse than read the references behind this Quora answer. In terms of actual techniques to solicit withheld information - there are generally accepted to be 16 techniques which preclude enhanced interrogation such as calorie restriction, sleep deprivation etc. Bear in mind, as stated elsewhere, law enforcement do not interrogate. The military and intelligence organisations interrogate. You can research each one in detail. Direct Approach ...(just simply ask) Love of Comrades ...(this will help save their comrades...) Hate of Comrades (...they LEFT you...) Love of Family ...(your war is over, talk and you get to go home...) Identity Accuse ...(you are a criminal aren't you!) Silence ...(simply wait them out) Good Cop / Bad Cop We already know ...(so you might as well tell us and help yourself) Non-stop ...(Question after Question after Question) Confused ...(Pretending the liar is smarter than you and you need help) Pride/Ego ...(Congratulating the liar/restoring his pride) Pride/Ego ...(Destroying the ego of the liar for being caught) Fear Up ...(Scaring the liar Jack Bauer style) Fear Down ...(Allaying fears with words and gifts to build rapport) Without Hope ...(Making the prisoner see he is without any options) Incentive ...(providing the reward for cooperation) |