Brain scanning also known as brain fingerprinting first deviced in 2004 is a technology that uses electrical impulses generated from the brain to detect a potential liar or criminal who tries to deny an allegation or accusation,the combination of brain fingerprinting/DNA fingerprinting and scanning will make it possible for liars to be caught and the innocent to be freed,truely a time is coming whereby technology can make it impractical for an individual to lie and that time is now!!!!!