ch y Psychology can assist law enforcement by profiling criminal suspects assessing in truthfulness of suspects and evaluating the validity of their confessions. Psychological theory and techniques can be used to improve police officers evaluations of criminal suspects. * Profiling is usually performed at the beginning of criminal investigation when the police need help focusing on certain types of people who might be the suspect * Once a suspect has been identified law enforcement officials use other procedures to determine whether any of them should be charged. * Police look for visual and verbal cues to determine whether they are giving truthful responses Suspects are sometimes given a lie detector test to encourage them to confess. * The tests provide more information about their guilt or innocence. * They conflict with some psychological findings about their accuracy. * Sometimes they are submitted into evidence. * Many psychologists question the validity of the test. The police interrogate suspects and encourage them to confess because the confessions make it more likely that suspects will successfully prosecute and eventually convicted the suspects. Psychological finding often conflict with the courts evaluations of a voluntary confession. There is some evidence psychological characteristics are linked to behavioral patterns and they can be detected by a psychological analysis of crime scenes. * Criminal profiling is used to narrow criminal investigations to suspects who possess certain behavioral and personality features that were relived by the way the crime was committed. * Profiling does not identify a specific suspect * It does offer general psychological description of the most likely type of suspect. Like the personality or behavioral characteristics so the police is able to concentrate on the most