心理测试技术中情绪机制的应用

心理测试技术是一项多学科综合应用的产物,但心理学是其最重要的理论根基和发展动力。个体情绪机制是心理测试技术存在和应用的一个重要的心理学原理。在实际应用中,还必须结合犯罪嫌疑人情绪机制的特点,分析其在测前谈话中的调动作用,在正式测试中的聚焦作用和在测后谈话中的突破作用。     

Implementation of a semi-automated processing system for DNA profiling of forensic casework samples

The concept for a semi-automated processing system for DNA analysis of crime scene samples was developed at the Landeskriminalamt Baden-Württemberg (LKA BW) and comprises the extraction of genomic DNA from human cells by ChargeSwitch^® magnetic bead technology (CST), quantification of purified DNA by real-time PCR, amplification of short tandem repeats (STRs) by PCR and DNA fragment length analysis of STRs by capillary electrophoresis. Three liquid handling workstations from Tecan, a real-time PCR device and a 16-channel capillary electrophoresis (CE) system, both from Applied Biosystems (AB), are linked via laboratory data network. Transmission and management of sample and analysis data is enabled by a Laboratory Information and Management System (LIMS). Suitability for a wide range of stain types, early exclusion of DNA-free samples, barcode sample identification and prevention of cross-contaminations guarantee efficiency and high quality standards.     

论侦查效益价值

在侦查资源稀缺、犯罪形势 日益严重以及保障人权呼声不断高涨 的今天,要求侦查活动利用和科学地 配置有限的侦查资源,最大程度地实 现侦查的社会效益和经济效益。这既 是侦查效益的品性,又是侦查效益价 值的本质追求。因此从价值层面对侦 查效益进行分析,以解决侦查理论和 实践中出现的效益问题,具有重要的 理论和现实意义。     

人脾脏细胞核DNA含量与死亡时间关系的图像分析

目的研究人脾脏细胞DNA含量改变与死亡时间的关系。方法选取36例已知死亡时间的人体脾脏,在死后5～36h内逐时进行细胞学涂片、Feulgen Vans染色观察,并用图像分析系统,测定脾脏细胞核积分光密度、平均灰度等灰度参数,所得数据用SPSS软件分析。结果在5～36h内平均光密度、积分光密度、平均灰度均值均与死亡时间显著性相关,并得出对应的回归方程,其中平均光密度、积分光密度随死亡时间的延长而逐渐减小、平均灰度逐渐增大。结论人脾脏细胞核DNA含量改变呈现一定规律,与死亡时间明显相关。     

Characterization of human DNA in environmental samples

Environmental samples from indoor surfaces can be confounded by dust, which is composed largely of human skin cells and has been documented to contain roughly tens of micrograms of total DNA per gram of dust. This study complements previous published work by providing estimates of the quantity of amplifiable human DNA found in environmental samples from a typical indoor environment, categorized by the intensity of human traffic and visible quantity of dust. Dust was collected by surface swabbing standard 576 cm² areas in eight locations, and evaluated for total DNA quantity, presence of human DNA (mitochondrial and nuclear loci using conventional PCR), quantity of human nuclear DNA using quantitative PCR, and STR analysis. The total DNA content of 36 dust samples ranged from 9 to 28 ng/cm², and contained 0.2–1.1 pg/cm² of human DNA. Overall, human DNA was detected in 97% of 36 dust samples and 61% of samples yielded allele distributions of varying degrees of complexity when subjected to STR analysis. The implications of this study are twofold. First, the presence of dust in evidence can be a significant contamination source in forensic investigations because the human DNA component is of sufficient quality and quantity to produce allele calls in STR analysis. This can be effectively managed by implementing stringent protocols for collection and analysis of potential biological samples. A second implication is the use of dust as a source of evidence for identification of inhabitants within a defined location. In the latter case, a number of additional studies would be necessary to identify relevant pretreatments for environmental dust samples and to develop the necessary deconvolution techniques to separate the composite genotypes obtained.     

司法会计鉴定结论质证方法探讨

司法会计鉴定结论同所有鉴定结论一样，并不具备天然的“权威性”。其证明力如何，须经法院审查和当事人的互相互相质证，这是一种正当的程序保障，有助于体现诉讼的公正性。本文从技术操作层面分析探讨了司法会计鉴定结论质证的方法。     

试论亲子鉴定

什么是亲子鉴定?为什么需要做亲子鉴定?亲子鉴定提起的主体及几种情形,亲子鉴定的社会意义.亲子鉴定的是与非.由此而引起的争论.亲子鉴定在司法实践中作为证据使用时应该注意的问题.在社会转型时期人们信用的危机,婚姻家庭所面临的考验.     

DNA typing in populations of mule deer for forensic use in the Province of Alberta

The present study involves the development of forensic DNA typing tests and databases for mule deer in the Province of Alberta. Two multiplex PCR reactions interrogating 10 loci were used to analyze samples from three populations of mule deer. Additionally, an amelogenin based sex-typing marker was used to determine the gender of samples. Results show that the tests and databases are appropriate for use in forensic applications. Additionally, the results indicate that there is little population structure in mule deer in Alberta and that no changes to management of this game species are suggested.     

印文鉴定相关问题探讨——高仿真印文鉴定

当前,与印文鉴定相关的并在鉴定实践中经常遇到的新问题和难点问题有高仿真印文的鉴定、变造印章问题、利用真实印文变造文件、同版印章印文、朱墨时序等,本文就高仿真印文的鉴定进行了系统阐述,介绍了各种高仿真印文,包括各种高仿真印章的盖印印文、复制印文、转印印文的伪造手段及其特点,并提出了高仿真印文的鉴定思路和要点。     

图像真实性鉴别方法研究

在侦查实践中,对伪造照片的检验已日益在侦查活动中占据着举足轻重的作用。科学技术的发展,各种图像处理软件的开发,使伪造、变造照片成为可能,从而为犯罪分子提供了可乘之机。因此,掌握正确的照片真伪的鉴别方法迫在眉睫。伪造、变造的照片的检验是根据成像原理等一般性原理得出的方法,具体包括一般检验、用光检验、透视原理检验、景深原理检验等方法。