目击证人辨认研究综述

研究目击证人辨认具有重要的理论意义与实践意义。本文重点介绍了影响目击证人辨认准确性的因素,即估计者变量和系统变量,并分析了目击证人辨认研究的现存问题。     

目击证人辨认研究综述

研究目击证人辨认具有重要的理论意义与实践意义.本文重点介绍了影响目击证人辨认准确性的因素,即估计者变量和系统变量,并分析了目击证人辨认研究的现存问题.     

目击证人辨认研究综述

研究目击证人辨认具有重要的理论意义与实践意义.本文重点介绍了影响目击证人辨认准确性的因素,即估计者变量和系统变量,并分析了目击证人辨认研究的现存问题.     

目击证人辨认研究综述

研究目击证人辨认具有重要的理论意义与实践意义.本文重点介绍了影响目击证人辨认准确性的因素,即估计者变量和系统变量,并分析了目击证人辨认研究的现存问题.     

目击证人错误辨认的立法防范——英国《1984年警察与刑事证据法·守则D》解读

现代心理学研究结果表明,由于各种因素的影响,目击证人的证言有时并不准确.为了防止目击证人错误辨认可能带来的消极后果.英国<1984年警察与刑事证据法·守则D>在吸收心理学最新研究成果的基础上,不定期进行修改,从而最大程度地确保目击证人辨认结果的可靠性.2008年重新修订后的<守则D>从限制主持辨认的警官资格、减少辨认程序本身固有的暗示性、控制事后信息、保障犯罪嫌疑人权利行使等角度作了科学、细致的规定,对于预防和减少目击证人的错误辨认具有重要意义.     

认知脑电位检测在目击证人心理面孔重建中的应用

检验目击证人对犯罪嫌疑人面孔记忆的正确性是一项困难的工作。在证人面孔记忆的语义提取过程中,严格遵守完形原则,尽量减少影响证人记忆和再认的因素,把握细节,可以提高目击证人心理面孔重建的质量。认知脑电位检测法可以通过对记忆反应的脑电图成分、潜伏期、波幅等指标的测量,有效判断证人对列队辨认中的面孔是否存有记忆。本文对脑电位检测在目击证人心理面孔重建中的研究和应用进行综述,希望能为相关研究和实践提供参考。     

证人描述能够告诉我们什么——基于模拟实验的分析

在实践中目击证人的描述是警方收集犯罪信息的重要途径,也是判断其辨认结果是否可靠的重要根据.然而本模拟研究表明,目击证人描述的信息通常比较模糊,缺乏个体识别所必须的充分细节,而且描述的完整性、准确性与辨认结果的准确性之间并不存在统计学意义上的显著相关性.     

证人的目击面孔心理重建及认知检测

提取目击证人对犯罪嫌疑人的面孔记忆是一项困难的工作,由于证人在识记面孔时有多种影响因素,在提取和再认记忆时又会有各种认知因素的影响,导致面孔心理重建的失真。因此,从认知心理学和实验心理学的角度入手,分析影响心理重建的因素,并用最佳的手段提取记忆,可以使面孔重建的可靠性最大化。认知相关电位在记忆检测领域的日臻完善,使目击证人的再认正确与否有了可靠的参照,从记忆反应的脑电图形分析,可以有效判断证人对列队辨认中的面孔是否存有记忆。     

陈述记忆画像浅谈

陈述记忆画像是通过目击证人对案犯面貌形象的回忆刻划,目前世界上许多国家在这项技术的运用上有很多成功的经验。笔者在办案过程中体会到陈述记忆画像的制作虽有难度,但关键在制作画像过程中体会目击证人的心理。 1 目击证人的记忆是画像的首要条件 记忆是视觉、感觉、知觉、想象、思维等因素的综合,目击证人的记忆通常分为两种情况:一种是有意识的记忆,另一种是无意识的记忆,在进行画像工作时必须要深入现场了解情况,分析目击证人记忆的由来及形成过程的可靠性,科学地反映出罪犯的真实面貌特征。     

证人记忆的影响因素及认知神经科学检测方法探新

影响证人记忆的因素众多,而证人的记忆准确性决定了其证言的可靠性,从心理学的角度对这些影响因素进行分析并找出应对方法,将证人的记忆提取效率提高到最大化,减少错误记忆的发生。讨论认知神经科学应用在探查证人记忆的可行性及现有理论支撑,该方式在证人记忆检测中将有极大的作用。     

Juror decision making in eyewitness identification cases

The lay-person's knowledge of the factors that influence eyewitness memory was examined by evaluating the manner in which mock jurors integrated eyewitness evidence to draw inferences about defendant culpability and the likelihood that an identification was correct. Three hundred and twenty-one undergraduates viewed a videotaped trial within which ten witness and identification factors were manipulated between trials. Manipulation checks showed that subjects demonstrated superior memory for the evidence and the manipulated variables had their intended impact on appropriate rating scales. However, only one variable, witness confidence, had reliable effects on subjects' perceptions of culpability, on the perceived likelihood that the identification was correct, and on several other relevant dependent variables. Eight variables that have been shown to affect identification accuracy in the empirical literature had trivial effects on mock jurors' inferences. It was concluded that lay-people are insensitive to the factors that influence eyewitness memory.     

Perspectives on the impact of lineup composition,race, and witness confidence on identification accuracy

This paper addresses a number of issues suggested by the Lindsay and Wells (1980) study on lineup composition and identification accuracy. The interaction between bias in instructions to the witness, presence or absence of the criminal from the lineup, and similarity between the suspect and the lineup foils are discussed. Although Lindsay and Wells suggest that witness confidence has little or no relationship to witness accuracy, it is pointed out that a recent field study found a substantial accuracy-confidence relationship when criminal-present photo lineups were used. There are not yet clearcut findings on the accuracy-confidence relationship in criminal-absent lineups, partially because of ambiguity in the definition of confidence in this situation. Although there is much research on the impact of the race of suspect and witness on identification accuracy, little attention has been paid to the race of the person who constructs the photo or corporeal lineup. Recent research results lead to the prediction of an interaction between all three of these factors on identification accuracy, with greatest accuracy when the lineup constructor and lineup members are of the same race and the witness is of a different race. Issues in the applicability of the results of Bayesian analyses to the judicial system are briefly discussed. Potential issues include the tendency to see researchers solely as advocates for the defense, and the tendency of people to disregard statistical summaries such as base rate data and research results when making individual decisions. An additional issue concerns Bayesian diagnosticity ratios (derived from rates of correct and false identifications) which can be logically and statistically equivalent to one another but differ considerably in their legal applications and value relevance.     

Eyewitness Identifications by Older and Younger Adults: A Meta-Analysis and Discussion

The current meta-analysis compared younger and older adult eyewitness identification accuracy and includes analyses designed to determine what witness and event factors might moderate any differences found. Results showed that, regardless of lineup type and perpetrator age, older eyewitnesses are reliably worse at making correct lineup decisions than younger eyewitnesses whether they are identifying perpetrators or rejecting perpetrator-absent lineups. Discussion of possible causes for this difference in identification accuracy is drawn from cognitive and social psychology literatures, and possible implications for future research and public policy are put forth.     

Mugshot Exposure Effects: Retroactive Interference, Mugshot Commitment, Source Confusion, and Unconscious Transference

More than 25 years of research has accumulated concerning the possible biasing effects of mugshot exposure to eyewitnesses. Two separate metaanalyses were conducted on 32 independent tests of the hypothesis that prior mugshot exposure decreases witness accuracy at a subsequent lineup. Mugshot exposure both significantly decreased proportion correct and increased the false alarm rate, the effect being greater on false alarms. A mugshot commitment effect, arising from the identification of someone in a mugshot, was a substantial moderator of both these effects. Simple retroactive interference, where the target person is not included among mugshots and no one in a mugshot is present in the subsequent lineup, did not significantly impair target identification. A third metaanalysis was conducted on 19 independent tests of the hypothesis that failure of memory for facial source or context results in transference errors. The effect size was more than twice as large for "transference" studies involving mugshot exposure in proximate temporal context with the target than for "bystander" studies with no subsequent mugshot exposure.     

Educating Jurors about Forensic Evidence: Using an Expert Witness and Judicial Instructions to Mitigate the Impact of Invalid Forensic Science Testimony

Invalid expert witness testimony that overstated the precision and accuracy of forensic science procedures has been highlighted as a common factor in many wrongful conviction cases. This study assessed the ability of an opposing expert witness and judicial instructions to mitigate the impact of invalid forensic science testimony. Participants (N = 155) acted as mock jurors in a sexual assault trial that contained both invalid forensic testimony regarding hair comparison evidence, and countering testimony from either a defense expert witness or judicial instructions. Results showed that the defense expert witness was successful in educating jurors regarding limitations in the initial expert's conclusions, leading to a greater number of not-guilty verdicts. The judicial instructions were shown to have no impact on verdict decisions. These findings suggest that providing opposing expert witnesses may be an effective safeguard against invalid forensic testimony in criminal trials.     

When is an intervening line‐up most likely to affect eyewitness identification accuracy?

Purpose. Intervening line‐ups affect identification accuracy in subsequent line‐ups. We conducted 3 experiments to investigate the conditions under which viewing multiple line‐ups is more likely to affect eyewitness identification accuracy. Method. In each of the 3 experiments, a forensically relevant factor known to affect the accuracy of face recognition memory was manipulated to assess how the factor impacted the suggestive influence of an intervening line‐up on eyewitness identification accuracy in a subsequent test line‐up. These factors were (a) in Experiment 1, same‐race versus cross race target faces, (b) in Experiment 2, whether the intervening line‐up occurred on the day of the presentation phase (close to presentation) or 1 month later on the day of the subsequent test line‐up (far from presentation), and (c) in Experiment 3, whether the target face was presented for 10 seconds or 60 seconds. Results. In each experiment, factors associated with poorer memory for the target face led to a greater suggestive influence of the intervening line‐up on identification accuracy in the subsequent line‐up, evidenced by lower hit rates and higher false‐alarm rates. Conclusions. These findings suggest that the problem of decreased identification accuracy following the viewing of an intervening photograph is especially of concern when memory for the perpetrator is likely to be poor. Implications of these findings for interpreting line‐up results in the courtroom are discussed.     

论司法鉴定人出庭作证

鉴定人在诉讼中起着重要的作用，鉴定结论必须经过审查、质证后才能在庭审中加以运用，鉴定人出庭作证也是必要的，然而，由于种种因素的影响和制约，当前我国司法实践中鉴定人出庭甚少，相关制度应当加以完善，以提高鉴定人的出庭率。     

论司法鉴定人员职业规则

如何理顺司法鉴定中各个主体的关系,如何规范司法鉴定活动,使司法鉴定活动可以发挥其制度设计中本应具备的职能,是司法鉴定制度进一步完善的重点。在可供选择的多种方式之中,司法鉴定人员职业规则是必不可缺的一环。自从2005年司法鉴定体制改革以来,针对司法鉴定人员职业规则的研究和制定规则的实践均刚刚起步,急需进行系统而具体的探索...