A Qualitative Analysis Of Deception Essay

In recent years new research has found that using evidence in a strategic way can help assist in the detection of deception. Deception is an attempt, successful or not, where by a liar trys to hide the truth. There are various methods which assist in detecting deception including analyzing verbal content, physiological responses and non-verbal behaviour. However the strategic use of evidence (SUE) technique has said to improve the accuracy of detection of deception upon these other method's. This technique looks at the strategy of providing evidence at the end of an interrogation process or vagely hinting at the evidence. The use of this technique has many strengths however also indures limitations, therefore further research has seen improvements been made to this technique.
Various methods are used to assist in the detection of deception. These include analysing speech, which has an average deception detection rate of 70% (Vrij’s, in press), physiological analysis at 80.6% (Elaad, 1998) and analysing behaviour with a rate of 44%. Previous to the introduction of the strategic
Unlike other methods SUE only has one element for it to work, evidence. The theory of SUE is for the interrogator to not disclose the evidence they know in the early stages of the interview but to disclose it late. For this technique to work the interrogator has to ask the suspect to give their account of everything they know about the crime committed. After the suspect has voiced all he knows the interrogator then asks questions. These questions disclose all the known evidence, pointing out any contradictions with their account and the evidence. Research and studies have shown that SUE assists with the detection of deception, where interrogators obtained an 85.4% accuracy rate in identifying whether the suspect was guilty (Hartwig,