Current state and progress of research on forensic biomechanics in China

Forensic biomechanics gradually has become a significant component of forensic science. Forensic biomechanics is evidence-based science that applies biomechanical principles and methods to forensic practice, which has constituted one of the most potential research areas. In this review, we introduce how finite element techniques can be used to simulate forensic cases, how injury criteria and injury scales can be used to describe injury severity, and how tests of postmortem human subjects and dummy can be used to provide essential validation data. This review also describes research progress and new applications of forensic biomechanics in China.

Key points

• The review shows the main research progress and new applications of forensic biomechanics in China.
• The review introduces eight cases about the application of forensic biomechanics, including the multiple rigid body reconstruction, the finite element applications, study of mechanical properties, traffic crash reconstruction based on multiple techniques and analysis of morphomechanical mechanism about blood dispersal.
• Though forensic biomechanics has a great advantage for the evaluation of injury mechanisms, it still has some uncertainties owing to the uniqueness of the human anatomy, the complexity of biological materials, and the uncertainty of injury-causing circumstances.

     

国民性格的改造与重建--20世纪文学主题综论

国民性格的改造与重建作为20世纪中国文学一个最重要的思想主题,既包含了对特定社会历史条件下人性扭曲病因的反思追问,又包含了对人性健康发展的祈盼和对理想国民性格的重建,由此衍生出现当代小说揭示批判国民劣根性与发掘颂赞民族性格优良美质的两种思想意向.     

Reconstruction of Criminal Defense System from the Field of "Trial-Centered" Litigation System Reform

The “trial-centered” litigation system reform, as a major task of China’s judicial reform, has drawn much attention due to its protection of the legitimate rights and interests of citizens as well as the maintenance of judicial fairness and authority. In the new-era background, the reform of the “trial-centered” litigation system will inevitably set new requirements on the litigation function, litigation structure and the judicial system as well. The perfection and reconstruction of the criminal defense system, as an indispensable part of the reform, is doomed to be an essential requirement concerning the realization of “trial-centered”. In a word, to perfect the criminal defense system is to reconstruct the lawyer defense system on the basis of a deep understanding of the connotation as “trial-centered”. To be specific, it refers to the following four aspects in the new judicial field as the full coverage of judicial field, the integration of configuration mode, the protection of subjective rights as well as the substantiation of functional effectiveness.     

Forensic Significance of Gunshot Impact Marks on Inanimate Objects: The Need for Translational Research

Wherever an impact mark is found, either on the surface or on the recovered projectile, it is important for forensic investigators to extract useful information in solving shooting-related cases. This article reviews a collection of works on examination of impact marks upon striking of projectiles on inanimate objects, emphasizing on the retrievable information from a shooting scene and their forensic significance in shooting event reconstruction. Literature suggested that impact marks on target surfaces and the degree of deformation on striking projectiles vary according to different combinations of ammunition and surface materials. It was noted that conditions in real-case scenarios further differed unpredictably in comparison with controlled studies, where forensic investigation should be treated as case-specific basis. Furthermore, the way forensic science is researched and applied operationally has to be reconsidered to reduce the gap via translational approach for more effective use of forensic evidence.     

Mouth Width and Cupid’s Bow Estimation in a Southern African Population

Standards for estimating mouth width and Cupid’s bow width in craniofacial approximation and superimposition are limited. Currently, the only guideline for mouth width, using direct skeletal references, is a general rule indicating a 75% inter-canine to mouth width ratio. The philtrum, which closely corresponds to the Cupid’s bow, is said to be equal to the inter-superior prominences of the maxillary central incisors. This study tested these guidelines against newly generated regression models and mean values. Cone-beam CT scans of 120 black and 39 white southern African adults were used. Comparative hard and soft tissue measurements were taken using a 3D DICOM viewer. Regression equations accounting population, sex, and approximate age variables (20–39 and 40+ years), utilizing maxillary inter-canine width to estimate mouth width and maxillary central–lateral incisor junction width to estimate Cupid’s bow width, performed statistically best. The regression models were more reliable than existing standards in validation tests.     

An Overview of 3D Printing in Forensic Science: The Tangible Third-Dimension

There has been a rapid development and utilization of three-dimensional (3D) printing technologies in engineering, health care, and dentistry. Like many technologies in overlapping disciplines, these techniques have proved to be useful and hence incorporated into the forensic sciences. Therefore, this paper describes how the potential of using 3D printing is being recognized within the various sub-disciplines of forensic science and suggests areas for future applications. For instance, the application can create a permanent record of an object or scene that can be used as demonstrative evidence, preserving the integrity of the actual object or scene. Likewise, 3D printing can help with the visualization of evidential spatial relationships within a scene and increase the understanding of complex terminology within a courtroom. However, while the application of 3D printing to forensic science is beneficial, currently there is limited research demonstrated in the literature and a lack of reporting skewing the visibility of the applications. Therefore, this article highlights the need to create good practice for 3D printing across the forensic science process, the need to develop accurate and admissible 3D printed models while exploring the techniques, accuracy and bias within the courtroom, and calls for the alignment of future research and agendas perhaps in the form of a specialist working group.     

Geomatic techniques in forensic science: A review

The purpose of this review paper is to highlight various geomatic techniques that crime scene reconstructionists or forensic practitioners can use to document different kinds of scenes, highlighting the advantages, disadvantages, and when best to use each technology. This paper explores geomatic techniques such as a total station, photogrammetry, laser scanners and structured light scanners and how they can be used to reconstruct crime scenes. The goal of this paper is not to discredit manual methods, as they are long standing and reliable, but instead to shed light on alternative methods that may produce equally or more accurate results with a more visually appealing final product. It is important for law enforcement and forensic professionals to understand the advantages and disadvantages of each technique, knowing when certain techniques should be used (and when they should not), and being able to revert to traditional methods if required.     

Self-protection in Greece: sticking with groups,communicating, protesting,and fighting

Despite the international community’s responsibility to protect (R2P) mandate, we are years away from effective international enforcement mechanisms. It is therefore important that we better understand and seek to support local capacities for self-protection. Migrants and refugees in Greece have shown us four central ways they cope with insecure environments. They stick together in groups, communicate warnings of danger, protest when conditions are threatening, and fight when all else fails. This practical note offers three recommendations on how to support the capacity of displaced people to protect themselves.     

‘It’s not just the economy,stupid’. The multi-directional security effects of the private sector in post-conflict reconstruction

Using a human security lens, this article explores the interface between transnational corporations (TNCs) and post-conflict, post-crisis societies. It demonstrates how TNCs influence political and economic transition, through impacting the everyday experience of security, creating multiple and ambiguous effects on individuals and communities. Examples of two foreign corporate engagements: carmaker Fiat’s investment in Serbia and steelmaker ArcelorMittal’s takeover in Zenica in Bosnia-Herzegovina are used to illustrate the density of relationships between global companies, host governments, civil society and local communities whose effects extend beyond economics to broader aspects of the conflict space, and have a bearing on the transition and reconstruction agenda. Our findings question the quality of development and industrialisation policies championed by post-conflict reconstruction approaches, and challenge the assumption that economic growth and investment, by foreign companies in particular, will necessarily deliver peaceful transition. The article contributes to the scholarly debate about the connection between security and development, and to policy discussions about appropriate means for reviving economies within externally led peace-building and conflict prevention initiatives.     

三河源水源地生态重建的依据及措施建议

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