In most crime scenes, there is some information that is known only by investigators and the actual perpetrator. Only the kidnapper knows what the abandoned shed where they kept a victim looks like, and only the true thief will know which house was burglarized. When confronted by investigators about this type of information, suspects uniformly answer: “I’ve never seen that before.” Soon, however, neuroscience technology may be able to help the legal system differentiate the truth tellers from the liars, according to a University of Minnesota study.