The detection of beta-cypermethrin during forensic chemical expertise of biological materials

The optimal conditions for the isolation of beta-cypermethrin from biological materials by means of dioxane extraction have been developed. The possibility to purify beta-cypermethrin from endogenous impurities is demonstrated by combination of liquid-liquid extraction and chromatography through a silica gel column (L 40/100 mcm). It is shown that identification and quantitative determination of beta-cypermethrin extracted from the cadaveric liver tissues are possible using such techniques as thin-layer chromatography, electron spectrometry, and chromato-mass spectrometry. A method for forensic chemical expertise of the presence of beta-cypermethrin in biological materials is described.     

Detection of bancol for the purpose of forensic chemical expertise

Optimal conditions for the extraction of bancol from the biological material with toluene are described. The possibility of its purification and separation from co-extracted compounds on a silicagel L column, 40/100 mcm is illustrated. Identification and quantitative determination of bancol isolated from the cadaverous liver were performed by the electron spectrophotometry technique, thin-layer chromatography, and high performance liquid chromatography using normal-phase sorbents. A method of bancol detection was adapted for the purpose of forensic medical expertise and applied for the postmortem examination of the cadaverous tissues.     

Evaluating expertise in forensic anthropology

The medicolegal system relies on the ability of experts and non-experts alike to make judgments about expertise and use those judgments to reach consequential decisions. Given the lack of standard criteria, mandatory certification, or licensure for establishing expertise required to practice forensic anthropology and testify as an expert witness, we sought to understand how individuals assess and identify expertise in forensic anthropology by using a social science tool called the Imitation Game. This tool assesses immersion in a specific area of study via discourse, with the premise that some individuals lacking expertise themselves imitate or attempt to pass as experts. For this project we recruited volunteers with varying expertise in forensic anthropology to participate in interviews which asked questions about the practice and structure of the discipline. Those interviews were transcribed, anonymized, and evaluated by other recruited individuals with varying expertise in forensic anthropology. Results found that judges who were experts in forensic anthropology performed better than non-expert judges in determining who was not an expert in forensic anthropology based on their anonymized responses; however, nearly half of the non-experts were still able to pass as experts in forensic anthropology. The difficulties in assessing expertise based on discourse interactions demonstrates the value and need for well-defined credentials and mandatory certification to practice forensic anthropology. This study demonstrates that accurately identifying expertise in forensic anthropology may be challenging for both experts and non-experts, especially when relying solely on interactional expertise rather than formal assessments of competency which directly elucidate contributory expertise.     

The forensic medical expertise in trauma of male genitals

A damage inflicted to genitals organs (GO) affects the copulative functions, the sperm fertilizing ability and, as a whole, the reproductive function. Injuries to the external genital organs (EGO) due to immediate trauma are more often the case in the forensic medical practice; they are less often encountered in operative interventions in organs, which are close to the prostate or those having immediate direct links with the testicles or with the cavernous bodies of the penis, i.e. in case of an indirect trauma or an mediated effect on the functions of GO. Even if there is a smallest damage to the EGO region, the man needs to consult the urologist in the out-patient or in-patient medical institution. It is always necessary to asses a degree of severity to the health both by signs of duration to health disorders and by an outcome of injury with regard for trauma severity and possible impact on the reproductive function.     

Efficiency of hardware-assisted tools in forensic expertise

The authors analyze the efficiency of special-purpose hardware-assisted tools (SHT) in forensic expertise. Unlike clinical medicine, in which the methods of quantitative and qualitative analysis are comprehensively used in choosing drugs, issues related with providing the state forensic-expertise facilities with specialized equipment have not been virtually elaborated up to now. The qualitative analysis based on the subjective evaluation of experts is used presently for the purposes. Therefore, development of objective criteria of evaluation of SHT for forensic expertise is an important and topical issue.     

The diagnosis and forensic psychiatric expertise in infectious cerebral arachnoiditis

Neurologic and psychiatric examination of 32 patients with infectious cerebral arachnoiditis was performed. Psychopathic-like syndrome and intellectual deficiency were diagnosed in those patients and the correlation between high intracranial pressure and severity of mental disorders was established. Characteristics of forensic psychiatric examination of this group of patients are presented.     

法医病理检案工作中的人为现象

目的 研究法医病理检案工作中常见的人为现象及其造成法医学鉴定结论错误的原因。方法 收集13例法医病理复核鉴定案例,并对其进行回顾性分析。结果 胸外心脏按压所致肋骨骨折,胸、腹腔出血及肺动脉栓塞栓子破碎,误认为生前外伤或死因不明5例;胰腺死后变化(自溶和被膜下及间质出血),误认为急性出血坏死性胰腺炎4例;死后动物咬伤误认为生前损伤2例;腐败尸斑误认为皮下出血1例;死后颈部解剖不当造成颈部肌肉出血,影响死因分析1例。结论 法医病理检案工作中的人为现象,常导致法医学鉴定的结论错误。     

Diatoms in forensic expertise of drowning--a Macedonian experience

Results obtained by examination of 22 human cases suspected for drowning, one human case of death other than drowning and several tests on laboratory rats were used as a basis for evaluation of diatom method as supportive in forensic expertise of drowning. The recovery of diatoms from various examined organs, their qualitative and quantitative composition, if properly treated without the possibility of contamination, can be a reliable proof of the time and place of drowning. The priority of organ examination (external microflora determination, lungs, brain, heart (and/or blood), stomach, liver and kidney, and finally bone marrow) is discussed and established as well as the basic future research on cases suspected of drowning, but also on non-drowned victims and laboratory animals.     

The forensic medical expertise of acute local radiation trauma]

Informative diagnostical criteria of medicolegal evaluation and prognosis of corporal lesion gravity in case of acute local radiation trauma as well as algorithm of medicolegal diagnostical process concerning these lesions with reference to external radiation exposure, kind of injuring factor, differential-diagnostical signs of acute local radiation trauma are suggested. They make it possible to formulate medicolegal diagnosis and can form the basis for developing diagnostical programmes.     

论法医学鉴定文书

概述 一、法医学鉴定文书的概念及其种类 法医学鉴定文书,是指法医学鉴定人接受委托和在检验、鉴定过程中形成的各种规范性文字、数据和图片(像)资料,以及根据检验所见和鉴定结论制作的书面报告的总称,也可以简称为法医学文书.关于法医学鉴定文书的名称问题,在传统法医学中仅见介绍过"法医学鉴定书”一词,而法医学鉴定书是法医学鉴定文书的一种.另外,我国法学界和司法部门使用的"诉讼文书(有称司法文书和法律文书)”与法医学鉴定文书的关系尚需进一步探讨,但诉讼文书中也涉及法医学鉴定文书的内容. 根据法医学鉴定文书的作用、特点,可以将其分为以下几类(如图示),该分类主要包括三个方面,鉴定程序和过程的文字记录;鉴定书;鉴定结论签发手续和应用反馈.     

论法医学鉴定文书

编者按：法医学是为法律服务的一门自然科学，其提供服务是通过鉴定实现的。鉴定在法医学，乃至法庭科学中占有极为重要的位置。然而，由于我国在司法鉴定立法方面很不完善，以及其他众所周知的原因，致使有关法医学鉴定的理论发展缓慢，很不系统，这不仅影响专业教育培养职业鉴定人，而且，也不利于充分发挥法医学鉴定的服务职能。为此，我们提出创建“法医鉴定学”，作为法医学的分支学科。法医鉴定学所涉及的内容较为广泛，其学科框架尚难明确界定。我刊从本期开始设“法医鉴定学”专题栏目，本期两篇文章，旨在抛砖引玉，特别是通常所称…     

医疗纠纷的法医学鉴定

目的研究医疗纠纷法医学鉴定的特点,并讨论医疗纠纷法医学鉴定的重点及难点。方法将医疗缺陷分为责任性缺陷、技术性缺陷、管理性缺陷、学科性缺陷和其他缺陷,对36件案例分别进行分类并进行统计。其中把18例由医疗事故鉴定委员会鉴定的结论与我室的鉴定结果进行比较分析,其他18例另行统计。结果36例案件中存在医疗缺陷的占86.11%,其中技术性缺陷66.67%,责任性缺陷和管理性缺陷均占25%。18例由医疗事故鉴定委员会鉴定的结论与我室的鉴定结果进行比较,医疗缺陷的认定两者有明显差异(P<0.05),对于医疗缺陷已对患者造成不良影响的认定,两者具有显著性差异(P<0.01)。结论法医进行医疗纠纷的鉴定,对医疗纠纷诉讼案件的处理起着积极的作用。目前,医疗纠纷的法医学鉴定仍存在许多问题需要进一步讨论。     

The forensic medical expertise of the victims of large-scale fires]

The difficulties of present-day forensic medical expert evaluation of poisonings in fires are explained by exposure of man to highly toxic compounds that form during burning of polymers. Analyzing forensic medical expert evaluations of a large number of victims dead in a large-scale fire, the authors emphasize the necessity of measuring not only dead people's blood levels of HbCO, but of some other toxic combustion products that may exert combined effects on human body. The authors think it desirable that criteria of forensic medical evaluation of combined poisoning in fire be defined.