论犯罪现场重建的若干理论问题

现场重建是一种案情分析论证的科学方法和证明犯罪的有效手段.为提高我国侦查工作的科学化、现代化水平,有必要在侦查活动中更为充分地运用现场重建技术.要对现场重建的定义及其与几个相关概念、现场重建的分类、功能作用、现场重建的科学基础和基本步骤进行研究.     

A Molecular Method to Correlate Bloodstains with Wound Site for Crime Scene Reconstruction

Bloodstain pattern analysis to determine the wound‐of‐origin of bloodstains is problematic with nonspecific patterns. In this proof‐of‐concept study, the authors examined a molecular approach to correlate bloodstains with injuries using the rat as a model. Specifically, investigations were conducted on the rat brain marker, rno‐miR‐124‐3p, with the QIAGEN miScript System and real‐time PCR analysis. Rno‐miR‐124‐3p was detected in brain homogenates diluted 100,000 times; in 3‐week‐old, room temperature stored, simulated brain–blood stains; and in bloodstains from head gunshot wounds collected with swabs and subsequently frozen for 9–18 months; however, rno‐miR‐124‐3p was not detected in whole blood. Proof‐of‐principle was demonstrated by the ability to distinguish bloodstains from a gunshot wound to the head versus bloodstains from a gunshot wound to the chest, by the testing of otherwise identical bloodstains from the two patterns for the presence of the marker. The results suggest a viable approach to a longstanding problem in casework.     

论犯罪现场重建理论的价值

现场重建理论体现出深刻的技术理性,引入与借鉴现场重建理论对增强我国侦查工作和侦查理论的科学性,乃至促进刑事司法改革都具有重要意义。要确认现场重建理论的价值,需要我们对传统的办案方式和侦查学理论进行深刻的理性自醒,并从刑事司法改革的高度予以审视。     

犯罪现场重建中心理痕迹分析研究

在犯罪现场重建理论和实践中,研究的焦点一般都集中在犯罪现场物质痕迹的发现、提取、分析、检验和鉴定而忽略了现场重建中大量存在的心理痕迹。本文比较详细的论述了心理痕迹在犯罪现场重建中的地位和作用。     

A Molecular Method to Detect Wound Cells in Bloodstains Resultant of Sharp Force Injuries for Crime Scene Reconstruction

Previous research by the authors on an animal model showed that bloodstains can contain additional information about their somatic origin in the form of wound cells. Bloodstains produced by a gunshot wound to the head were distinguished from bloodstains produced by a gunshot wound to the chest by testing the stains for a brain microRNA marker. In this study, the effectiveness of the technique was examined on blood drops shed externally from a stab wound to the liver of rat carcasses. Specifically, investigations were conducted on the liver microRNA marker, rno‐mir‐122‐3p, with the QIAGEN miScript System, and PCR analysis. Between the two stabbing methods used, 67% of the scalpel blades and 57% of the blood drops tested positive for rno‐mir‐122‐3p; however, other samples tested negative giving inconclusive results as to the wound‐of‐origin. The amount of the liver cells in the bloodstains appeared to be related to the extent of trauma.     

浅谈犯罪现场勘查课的分段教学法

犯罪现场勘查课是我国公安院校侦查学和刑事科学技术学等专业都开设的一门专业必修课程,为了适应当前犯罪形势 对侦查人才的需要,如何深化现场勘查课的教学改革,开展互动式教学,学以致用,是公安教育工作者值得思考的问题。     

The Role of Forensic Botany in Crime Scene Investigation: Case Report and Review of Literature

Management of a crime is the process of ensuring accurate and effective collection and preservation of physical evidence. Forensic botany can provide significant supporting evidences during criminal investigations. The aim of this study is to demonstrate the importance of forensic botany in the crime scene. We reported a case of a woman affected by dementia who had disappeared from nursing care and was found dead near the banks of a river that flowed under a railroad. Two possible ways of access to crime scene were identified and denominated “Path A” and “Path B.” Both types of soil and plants were identified. Botanical survey was performed. Some samples of Xanthium Orientalis subsp. Italicum were identified. The fall of woman resulted in external injuries and vertebral fracture at autopsy. The botanical evidence is important when crime scene and autopsy findings are not sufficient to define the dynamics and the modality of death.     

犯罪现场层次论

犯罪现场层次是犯罪现场存在表现及其被侦查人员认知的程度。犯罪现场是由犯罪时间、犯罪空间、犯罪嫌疑人条件、犯罪痕迹物证、犯罪活动过程、犯罪心理、犯罪证据等各种层次构成的复合体。研究犯罪现场层次论也是研究犯罪现场构成要素的存在及其在不同层面的联系。犯罪现场层次也是研究和揭示犯罪现场存在的一种认知。研究犯罪现场层次问题,也可以使我们对犯罪现场状况及其勘查工作质量给以程度判定。     

HDR技术在现场摄影中的应用研究

运用HDR技术可以获得被拍景物从最亮区域到最暗区域更多的细节。在现场摄影中运用HDR技术能够使现场照片和部分物证获得比通常的数字成像技术或摄影方法更大的动态范围,从而更好地再现高光或阴影部分的细节,获得更多的影像信息。     

The Role of Forensic Botany in Solving a Case: Scientific Evidence on the Falsification of a Crime Scene

Forensic botany can provide useful information for pathologists, particularly on crime scene investigation. We report the case of a man who arrived at the hospital and died shortly afterward. The body showed widespread electrical lesions. The statements of his brother and wife about the incident aroused a large amount of suspicion in the investigators. A crime scene investigation was carried out, along with a botanical morphological survey on small vegetations found on the corpse. An autopsy was also performed. Botanical analysis showed some samples of Xanthium spinosum, thus leading to the discovery of the falsification of the crime scene although the location of the true crime scene remained a mystery. The botanical analysis, along with circumstantial data and autopsy findings, led to the discovery of the real crime scene and became crucial as part of the legal evidence regarding the falsity of the statements made to investigators.