Update

The brain "fingerprinting" work mentioned here in 2000 and 2003, whose hypothesis is that different areas of the brain are active when a person recalls an actual experience, as opposed to recalling merely learned information, was used in June in Pune, India, to secure a woman's murder conviction. A neuroscientist convinced the judge that the suspect's responses to questions could only have come had she actually made a purchase of the arsenic in question and traveled the exact route taken by the alleged killer.