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GA/T 1969-2021: Forensic medicine - Guidelines for classification and inference of vulnerants from mechanical injuries
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GA/T 1969-2021: Forensic medicine - Guidelines for classification and inference of vulnerants from mechanical injuries

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Forensic medicine - Guidelines for classification and inference of vulnerants from mechanical injuries ICS 13.310 CCSA92 People's Republic of China Public Safety Industry Standards Forensic mechanical injury classification and classification Inference Guidelines Published on 2021-10-14 2022-05-01 Implementation Published by the Ministry of Public Security of the People's Republic of China

foreword

This document is in accordance with the provisions of GB/T 1.1-2020 "Guidelines for Standardization Work Part 1.Structure and Drafting Rules of Standardization Documents" drafted. Please note that some content of this document may be patented. The issuing agency of this document assumes no responsibility for identifying patents. This document is proposed by the Forensic Examination Sub-Technical Committee of the National Criminal Technology Standardization Technical Committee (SAC/TC179/SC6). focal point. This document is drafted by. Beijing Municipal Public Security Judicial Identification Center, Ministry of Public Security Material Evidence Identification Center, Chongqing Municipal Public Security Bureau, Guangdong Provincial Public Security Department, Heilongjiang Provincial Public Security Department. The main drafters of this document. Liu Li, Tang Jinhe, Liu Hua, Chen Qing, Liu Fan, Wang Jian, Tian Xuemei, He Guanglong, Yu Yangeng, Liao Xinbiao, Li Hongwei, Dai Guoxin and Zhang Shutao. Forensic mechanical injury classification and classification Inference Guidelines

1 Scope

This document presents the principles and procedures for the classification and inference of forensic mechanical injuries. This document is applicable to the inference of forensic mechanical injuries by various forensic identification institutions.

2 Normative references

There are no normative references in this document.

3 Terms and Definitions

The following terms and definitions apply to this document. 3.1 mechanical injury Mechanical violence acts on the human body to cause tissue damage and/or dysfunction. 3.2 All objects with mechanical factors that act on the human body to cause tissue damage and/or dysfunction. 3.3 characteristic injury It can reflect the damage of the contact surface shape, texture, size, injury method and other characteristics of the injured object. Note 1.Such as "hollow subcutaneous hemorrhage", "safety belt injury", "stripe pressure scratch" and so on. Note 2.The characteristic injuries of blunt force are mainly abrasions, contusions, contusions, closed fractures and closed visceral injuries. Note 3.The characteristic injuries of sharps are mainly cut wounds, stabbing wounds, cutting wounds, shear wounds and open fractures with cuts. Mainly observe the characteristics of sharp objects. Variation wounds, especially variation stabbing wounds, can be affected by factors such as the puncture site, changes in the positions of both sides, puncture angle and depth, and changes in the rotation of the stabbing device. Incision shape. Note 4.The characteristic damage of bullet action is mainly manifested as residual gunpowder particles or gunpowder components in the edge of the damage or in the cavity. 3.4 In the on-site inspection and auxiliary inspection links of the inferring process of mechanical injury injury, it can reflect the characteristics of the injury (such as shape, texture, physicochemical composition, biological evidence, etc.). Note. such as shoe sole pattern imprints left on clothes; warheads and bullet casings left at the scene of the shooting; X-ray examination found remaining projectiles in the body. 3.5 According to the morphological characteristics of mechanical damage, combined with the characteristic elements in the on-site investigation and auxiliary inspection, the type, size, The process of comprehensive analysis and inference of the characteristics of texture, quality and shape of the action surface. ...