外伤性瞳孔散大法医学鉴定的探讨

通过对１０例外伤性忆散大法医学鉴定的分析，为准确评定损伤程度提供参考。     

侦查讯问话语研究述评——侦查讯问话语系列研究之三

侦查讯问既是刑事司法程序中非常重要的一个司法环节,又是一种典型的机构性话语.从话语的角度探究侦查讯问的语言本质对语用学研究和刑事司法实践都具有重要的学术价值.本文对中外侦查讯问话语研究现状做出评介,理性分析既有研究成果的贡献与不足,又为侦查讯问话语的深入研究打下基础.     

浅谈影响司法鉴定质量的原因与对策

司法鉴定结论对于准确的定罪量刑,保证办案质量,避免冤假错案有着十分重要的作用。然而,目前在我国司法鉴定实践中,司法鉴定机构设置、鉴定标准、制度建设、鉴定人素质等方面还存在一些不足,致使鉴定结论的科学性、客观性、公正性受到了一定程度的影响。应建立统一合理的司法鉴定制度,规范统一的鉴定标准,建立鉴定机构和鉴定人的资质认证和社会评价制度,规范鉴定结论的质证机制,从而提高司法鉴定质量。     

医院开展法医临床司法鉴定工作浅探

从医学鉴定与法医学鉴定的概念界定入手,探讨了医院开展法医临床司法鉴定工作的管理思路。     

“502”胶显现汗潜手印后Basic Red 29染色的应用研究

研究一种新型的荧光染料碱性红29用于"502"胶显现手印后染色的方法。通过荧光分光光度计测定了该染料的激发光谱和发射光谱;并对其应用条件进行了考察,包括最佳配方、观察条件、不同客体手印显现效果、陈旧手印的处理方法等方面。结果表明,浓度为0.1 g/L的碱性红乙醇溶液,在530~550 nm范围内激发,在橙色滤光镜下观察能产生橙黄色的荧光,很好地增强了与客体背景的反差,提高了手印的显现率,由于其荧光效率高、安全无毒、吸附性好等优点,在公安实际工作中有很好的应用前景。     

基于自适应同源方差控制的法庭自动说话人识别

提出了自动说话人识别系统得分到法庭证据强度量化值似然比的转换方法. 为了更准确地评估嫌疑人的
统计模型,提出了自适应同源方差控制算法,该算法能自适应地融合来自参考人群和嫌疑人的同源语音得分模型
信息,降低了对嫌疑人数据量大小的需求. 与基本识别系统相比的测试结果表明,使用该算法的识别系统不但具有
更优良的识别性能和可靠性,而且提高了语音证据对判别结论的支持强度.     

基于插值检测的扫描图像源辨识方法*

针对扫描图像真实性的问题,提出了应用EM算法与扫描仪传感器噪声的自然统计特性相结合的识别方法。该识别方法一共生成63维特征,用SVM进行训练,通过大量实验图像,文中对取证方法效果进行了分析研究。结果显示,扫描图像虽然在生成过程中不存在CFA插值过程,但是在被显示前,仍经过了插值运算,傅立叶频谱图仍具有周期性。该算法对SG图像（扫描图像）与CG图像、SG图像与DG图像（数码相机生成图像）之间的识别,达到了较理想的效果。     

混合斑的DNA鉴定的几种方法研究

在法医物证学上,对于混合斑检材,通常采用Chelex法提取DNA后扩增再查看相关位点。在实际运用中,该法存在很大不足。为了提高鉴定成功率,作者对现有混合斑DNA鉴定的几种方法进行综合比较研究,现总结如下。     

Inventory of Sarcophaginae (Diptera: Sarcophagidae) for the Humid Chaco,a poorly surveyed ecoregion of South America

ABSTRACT

Sarcophaginae is a large subfamily of sarcophagid flies (Diptera: Calyptratae: Oestroidea: Sarcophagidae) which have diverse habits, mainly sarcosaprophagous, and have forensic and sanitary importance. This is the first work that analyzes the fauna of Sarcophaginae exclusively in the Humid Chaco ecoregion where diversity of flies has scarcely been studied. This inventory was based on: a) samplings at different locations in the province of Chaco, Argentina, and in the state of Mato Grosso do Sul, Brazil; b) examination of entomological collections and c) bibliographic records. Sixty-two species of Sarcophaginae flies are included in this paper, of which 31 species are recorded for the first time in the Humid Chaco ecoregion. Ten species are new records for Argentina, two for Brazil and three for Paraguay. Lepidodexia (Neophytodes) lindneri Townsend, 1931, Lepidodexia (Notochaeta) adelina Mulieri, Schaefer, Duré and González, 2018, Lepidodexia (Pachygraphomima) lenti Lopes, 1980, Oxysarcodexia berthet Dufek and Mulieri, 2017, Oxysarcodexia ibera Dufek and Mulieri, 2017 and Retrocitomyia paraguayensis Lopes, 1985 are registered as endemic species of the Humid Chaco ecoregion. Species with forensically and sanitary importance are listed. Some comments on species distribution previously published in catalogues are provided.     

Identification of Megaselia scalaris (Loew, 1866) (Diptera: Phoridae) in mummified human body from Itacambira (MG), Brazil,using scanning electron microscopy and cuticular hydrocarbons

Insect puparia were found adhered to the ribs and other tissues in the abdominal cavity of a natural male mummy found in Itacambira (State of Minas Gerais, Brazil) dating to the Colonial Period. They were collected for identification by scanning electron microscopy, and for comparison of several morphological features with those described in the literature. The puparia were found open and dorsoventrally flattened, making it difficult to visualize the dorsal projections. The tegument is covered by tapered spines and contains rows of small tubercles on the dorsal and lateral regions of the puparium. The posterior spiracle consists of four parallel openings arranged in pairs. These results are indicative that the specimens belong to the species Megaselia scalaris (Loew, 1866) (Diptera: Phoridae). Additionally, cuticular hydrocarbons of the puparia were analysed by gas chromatography coupled to mass spectrometry and compared with the profile of M. scalaris reared in the laboratory.