三维街景地图在多道仪测试中的应用研究

多道仪测试中的证据探索类测试,在国外常借助地图予以实施,这被称为地图测试法。本文使用三维街景地图替代传统的平面图,取得了明显的成效。在一起重大杀人焚尸扬灰案测试中,为了寻找3年前被抛洒的死者骨灰,作者利用三维街景地图,既改进完善了传统地图测试法,又将街景地图测试的形式推广至情节测试。结果显示,较之图片测试法和视频测试法,三维街景地图测试对被测人更生动形象,刺激效果更好,测试结果令人满意。     

侦查过程中的虚假供述问题研究

审讯的过程是为了克服嫌疑人被认为有罪的预期的阻力,获得法律容许的供词。因此,审讯的目标就是制造和增加犯罪嫌疑人的焦虑和绝望,减少其否认和沉默,以获取口供。为了实现这些目标,侦查人员采取的战术,包括隔离犯罪嫌疑人,然后采用正面或负面的激励。该文通过理解犯罪嫌疑人在特定情形下如何做出决定,然后描述虚假供述中的存在问题和外在因素,什么情况下会把无辜的人处于危险之中。     

关于ERP与CPS测谎技术的心理测量学差异的研究

事件相关电位心理测试技术与传统的多道心理生理测试技术相比,遵循着不同的基本原理和机制,由此带来二者在心理测量学上的差异。文章拟从心理测量学的行为样本、标准化、难度客观性测量以及信度、效度五个方面来分析两种测试方式的差异。     

血中毒鼠强的固相萃取和GC-NPD法测定

目的 研究人全血中毒鼠强的固相革取(SPE)。方法 用Bond Elute C18固相萃取柱萃取,GC-NPD检测,以甲基对硫磷为色谱内标(CS)。结果 全血中加标0.5μg/ml,毒鼠强回收率为92.5％,变异系数2.3％(CV,n=4)。在0.5～10μg/ml的浓度范围内,线性相关系数为0.9994。检出限(S/N=3)和定量限(S/N=10)分别为6ng/ml和20ng/ml。同一根萃取柱连续使用6次未见性能明显下降(CV=3.6%)。结论 本文方法适用于毒鼠强中毒的全血测定。     

CPS与ERP测谎方法不同测试顺序优越性的比较研究

ERP测谎技术作为一种新兴的测试技术不断应用于实际测试过程中，而为了保证测试的准确性，往往会将ERP测谎技术和CPS测谎技术结合使用。但两种测谎技术的测试顺序是否会对测试结论存在影响还无定论，因此文章拟利用同一模拟案件情境对被测人分别进行CPS和ERP测谎，并以测试顺序为变量来分析不同的测试顺序对测试结论是否具有显著影响，以期为心理测试实践提供一定的参考意见。     

论司法心理测试技术在侦查中的作用

司法心理测试是我国已蓬勃兴起的一项有效的高新科技,因受不合时宜的旧观念制约,尤其缺乏高水平的培训,使该技术未能在侦查中发挥应有的作用,应加强培训,确立测谎仪的国家标准,建章立制,加强管理,借鉴科技成果,以提高测谎技术在侦查中的运用效果。     

高效液相色谱法测定水中的草甘膦

目的建立强极性除草剂草甘膦的高效液相检验方法;方法采用离子交换液相色谱法分离,经柱后衍生化以荧光检测器定性检测样品中草甘膦;结果经该方法检测草甘膦的最低检测限为5ng/ml(S/N≥3);结论该方法快速、灵敏、准确,为此类案件的检验提供了科学依据。     

The Accuracy of Auditors' and Layered Voice Analysis (LVA) Operators' Judgments of Truth and Deception During Police Questioning*

The purpose of this study was to determine if auditors could identify truthful and deceptive persons in a sample (n = 74) of audio recordings used to assess the effectiveness of layered voice analysis (LVA). The LVA employs an automated algorithm to detect deception, but it was not effective here. There were 31 truthful and 43 deceptive persons in the sample and two LVA operators averaged 48% correct decisions on truth‐tellers and 25% on deceivers. Subsequent to the LVA analysis the recordings were audited by three interviewers, each independently rendering a decision of truthful or deceptive and indicating their confidence. Auditors' judgments averaged 68% correct decisions on truth‐tellers and 71% on deceivers. Auditors' detection rates, generally, exceeded chance and there was significantly (p < 0.05) greater confidence on correct than incorrect judgments of deceivers but not on truth‐tellers. These results suggest that the success reported for LVA analysis may be due to operator's judgment.     

Mechanisms underlying response bias in deception detection

Abstract

The present research aims to explore the mechanisms underlying response bias in detection of deception. In addition to examining the predictive value of generalized communicative suspicion (GCS), age, and professional experience, the present approach also investigates the role of error weighting by testing the hypothesis that a greater concern about Misses is associated with a lie bias. In Study 1, we analyzed samples of (a) students, (b) police trainees, and (c) police officers. Results revealed an asymmetrical error weighting as the strongest predictor of response bias. Supporting our hypothesis, participants who were more concerned about False Alarms were particularly truth biased, whereas a lie bias was observed among those who were more concerned about Misses. In Study 2, we manipulated the error weighting in order to test its causal relation to response bias. Results again show the predictive value of asymmetrical error weighting for response bias in deception detection, and indicate that the effects of the manipulation are moderated by individuals' habitual error weighting.     

数码照相机与视频荧光鉴别仪的物证检验应用比较

索尼SONY WVC-CD300数码照相机与SYJ-5型视频荧光鉴别仪应用在文件检验时,视频荧光鉴别仪部分功能可用 该种数码照相机代替,各具特色。