Lori Colwell and colleagues from Sam Houston State University have published in the latest issue of Psychology Crime and Law:
The current study surveyed a random sample of Texas law enforcement officers (n=109) about their knowledge regarding behaviors indicative of deception. The officers were not highly knowledgeable about this topic, overall performing at a chance level in assessing how various behavioral cues relate to deception. Confidence in one’s skill was unrelated to accuracy, and officers who reported receiving the most training and utilizing these skills more often were more confident but no more accurate in their knowledge of the behaviors that typically betray deception. The authors compare these results to previous studies that have examined officers’ beliefs in other countries and discuss the implication of these results in terms of developing future training programs that may debunk the common misconceptions that officers possess.
Lori H. Colwell, Holly A. Miller, Rowland S. Miller, Phillip M. Lyons, Jr. (2006). US police officers’ knowledge regarding behaviors indicative of deception: Implications for eradicating erroneous beliefs through training. Psychology, Crime and Law 12(5): 489-503
Training law enforcement officers to detect deception which reported on the same study, presented differently (Lori H. Colwell, Holly A. Miller, Phillip M. Lyons, Jr., Rowland S. Miller (2006). The Training of Law Enforcement Officers in Detecting Deception: A Survey of Current Practices and Suggestions for Improving Accuracy. Police Quarterly 9(3): pp 275-290)