Centre for Research and Development, Ministry of Defence, Sri Lanka; FGS - University of Kelaniya, Sri Lanka.
Department of Forensic Medicine, Faculty of Medicine, University of Kelaniya, Sri Lanka.
J Forensic Leg Med. 2020 Aug;74:102025. doi: 10.1016/j.jflm.2020.102025. Epub 2020 Jul 18.
An entry wound normally carries more macroscopic evidence than found in exit wounds. In addition to common wound characteristics of an entry wound such as an abrasion collar, burn marks etc., large amounts of trace evidences from the bullet and gun such as gunshot residues, powder tattoo, grease ring (bullet wipe) etc., are also present in entry wounds making them a richer source of evidence than exit wounds. This forensic-based study explores the low-angled entry wound characteristics of AK rifle bullets (7,62 mm × 39 mm) on porcine skin. This demonstrated a special entry wound characteristic similar to the commonly reported "abrasion ring" but differs in structure with an abraded area around the entry wounds and more significantly damaged outer margins. A significant inverse relationship between the AK bullet's approaching angle and the length of the external entry wound has also been reported in this work, with each finding contributing new knowledge to the forensic pathology of gunshot wounds. The findings of this study also have the potential to aid in shooting incident reconstructions.
入口通常比出口携带更多的宏观证据。除了入口常见的伤口特征，如擦伤环、烧伤痕迹等，大量来自子弹和枪支的痕迹证据，如射击残留物、火药痕迹、油脂环（子弹擦拭痕迹）等，也存在于入口中，使入口比出口有更丰富的证据来源。这项基于法医学的研究探索了 AK 步枪子弹（7.62×39 毫米）在猪皮上的低角度入口特征。这显示了一种特殊的入口特征，类似于通常报道的“擦伤环”，但在结构上有所不同，入口周围有一个被擦伤的区域，外部边缘受损更为严重。本工作还报道了 AK 子弹接近角度与外部入口长度之间的显著负相关关系，每一项发现都为枪击伤的法医学增加了新知识。本研究的结果还有助于枪击事件的重建。
