Research

Field Patrol Officers: A Field Deception Detection Textual Analysis Technique

Just by the very nature of their job police officers are not the most trusting of professionals.  Of course, the reasons the police are not trusting is because a large percentage of individuals they come in contact with are lying.  Whether the police are stopping a speeder or responding to a domestic violence incident, the person(s) they contact are most likely doing something they shouldn’t be doing.  A majority of police/citizen contacts usually result in an individual(s) either out-right lying or attempting to be deceptive.

The police need to be not only good at lie detection, but exceptional human lie detectors.  Over the last several decades there has been a myriad of studies that have found police are not any better at detection deception than the average college students (Kohnken, 1987).  James Warner a veteran police officer of 26 years and adjunct College of Southern Nevada professor has initiated a series of research studies built on previous research and original concepts.  The original concepts were derived from his academic and professional law enforcement career.  The focus of his research is on detecting deception.  His first experiments are on detecting deception in textual/written materials, e.g. witness/suspect statements, e-mail and/or text messaging.  The first stage of the research is to identify the highest percentage of deception and truthful written cues for preliminary investigators and field patrol officers.  These studies concentrate on differentiating between language, paralanguage and behavioral cues during a suspect’s initial interview and/or interrogation.

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