Thompson T J U, Inglis J
School of Science & Technology, University of Teesside, Borough Road, Middlesbrough, Cleveland, TS1 3BA, UK.
Int J Legal Med. 2009 Mar;123(2):129-35. doi: 10.1007/s00414-008-0275-x. Epub 2008 Jul 30.
Although evidence of sharp-force trauma on the human body, particularly the skeleton, can be extremely useful in providing information regarding the manner and context of death, there is still a lack of necessary detail available to the investigator. Using ribs, radii, scapulae, vertebrae and carpal bones, this study demonstrated that distinctions could be made between the stab marks left by serrated blades and those of non-serrated blades. Low power and scanning electron microscopy were used to record distinctive 'T'-shaped stab marks from non-serrated blades and 'Y'-shaped stab marks from serrated blades. In addition, elemental evidence of the presence of the blade in the stab-mark kerf was recoverable even when no metal fragment was visible.
尽管人体上锐器伤的证据，尤其是骨骼上的锐器伤证据，对于提供有关死亡方式和背景的信息极为有用，但调查人员仍缺乏必要的详细信息。本研究利用肋骨、桡骨、肩胛骨、椎骨和腕骨，证明了锯齿状刀片留下的刺伤痕迹与非锯齿状刀片留下的刺伤痕迹之间存在差异。使用低倍显微镜和扫描电子显微镜记录非锯齿状刀片留下的独特“T”形刺伤痕迹以及锯齿状刀片留下的“Y”形刺伤痕迹。此外，即使看不到金属碎片，也可从刺伤痕迹的切口处获取刀片存在的元素证据。
