Eyewitness Testimony Essay

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“Eyewitness testimony is, at best, evidence of what the witness believes to have occurred. It may or may not tell what actually happened. The familiar problems of perception, of gauging time, speed, height, weight, of accurate identification of persons accused of crime all contribute to making honest testimony something less than completely credible” (Cramer and Levin, 1968). Eyewitness testimony, which relies on the accuracy of the human memory, has an enormous impact on the outcome of a trial. Aside from the “smoking gun”, nothing carries as much weight with a jury than the testimony of an actual witness. However, how accurate is the actual account of the crime as said by that witness? The human memory is far from being perfect and, let’s face it, forgetfulness is a fact of life. One of the most obvious reasons for forgetfulness is the nature of the human memory itself. Even the most basic, everyday items often fail to be encoded into our memory. When reconstructing their memory of the crime, the eyewitness “unknowingly fills in the gaps in his or her factual memory of the crime based on such factors as the eyewitness’s expectations, attitude, beliefs and knowledge of similar events” (Wise, Fishman and Safer, 2009). This, in turn, produces a testimony that may seem believable and accurate, but does indeed contain many faults and inaccuracies. Another cause of faulty eyewitness testimony is eyewitness bias. Encoding is defined as “the set of mental operations that people perform on sensory information to convert that information into a form that is usable in the brain’s storage systems” (Ciccarelli and White, 2010 pg 214). Because encoding also involves interference and interpretation, what is stored in memory is not just what the eyewitness had seen, but also the meaning the witness gave to what happened. For example, if a hair stylist witnesses a crime,

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