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GA/T 2187-2024 PDF English

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GA/T 2187-2024: Forensic sciences - Specifications for examination of marks of physical match
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Basic data

Standard ID GA/T 2187-2024 (GA/T2187-2024)
Description (Translated English) Forensic sciences - Specifications for examination of marks of physical match
Sector / Industry Public Security (Police) Industry Standard (Recommended)
Classification of Chinese Standard A92
Classification of International Standard 07.140
Word Count Estimation 5,560
Date of Issue 2024-11-29
Date of Implementation 2025-05-01
Issuing agency(ies) Ministry of Public Security
Summary This standard specifies the inspection method of overall separation traces in the field of forensic science, and specifies the inspection steps, inspection records, comprehensive evaluation, presentation of appraisal opinions and precautions for overall separation traces in the field of forensic science. This standard is applicable to the inspection and appraisal of overall separation traces in the field of forensic science.

GA/T 2187-2024: Forensic sciences - Specifications for examination of marks of physical match



---This is a DRAFT version for illustration, not a final translation. Full copy of true-PDF in English version (including equations, symbols, images, flow-chart, tables, and figures etc.) will be manually/carefully translated upon your order.
ICS 07.140 CCSA92 Public Security Industry Standard of the People's Republic of China Forensic science whole separation trace examination specification Released on 2024-11-29 2025-05-01 Implementation The Ministry of Public Security of the People's Republic of China issued

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 for standardization documents" Drafting. Please note that some of the contents of this document may involve patents. The institution does not bear responsibility for identifying patents. This document was submitted by the Criminal Investigation Bureau of the Ministry of Public Security. This document is under the jurisdiction of the National Technical Committee on Criminal Technology Standardization (SAC/TC179). This document was drafted by. Ministry of Public Security Identification Center, Heilongjiang Provincial Public Security Department Criminal Technology Corps, Nantong Public Security Bureau, Tianjin Public Security Bureau Certification Center. The main drafters of this document are. Lin Min, Jiang Xuemei, Chen Zeng, Cui Jia, Wang Guodong, Bai Yanping, Liu Wei, Liu Yiwen, Liu Ran, Xu Kexin, Liu Jin, Jin Yifeng, Feng Lei, Dou Xiuchao, Zhang Dianwei. Forensic science whole separation trace examination specification

1 Scope

This document describes the method for testing forensic evidence of overall separation marks and specifies the method for testing forensic evidence of overall separation marks. Steps, inspection records, comprehensive evaluation, description of appraisal opinions and precautions. This document is applicable to the inspection and identification of overall separation traces in the field of forensic science.

2 Normative references

The contents of the following documents constitute essential clauses of this document through normative references in this document. For referenced documents without a date, only the version corresponding to that date applies to this document; for referenced documents without a date, the latest version (including all amendments) applies to This document. GA/T 1497-2018 Terminology for forensic science integral separation trace examination

3 Terms and definitions

The terms and definitions defined in GA/T 1497-2018 apply to this document. 4.Inspection methods 4.1 Feature Docking Method Place the separation edge and separation surface of the separation body together to observe whether the concave-convex structures of the separation edge and separation surface match; observe the surface pattern of the separation body Whether patterns, attachments and other additional features are continuously combined. 4.2 Feature comparison method Compare the morphology of the separation edge and separation surface to see whether their geometric shape, size, and concave-convex structure correspond.

5 Inspection steps

5.1 Preliminary inspection Observe the macroscopic characteristics of the separated bodies and determine whether the different separated bodies have the macroscopic conditions to constitute the whole substance. 5.2 Separate inspection 5.2.1 Determine whether the characteristics of the separation trace have changed. 5.2.2 Determine the features available for comparison, including inherent features, processing features, usage features, and separation features. 5.3 Comparison test 5.3.1 Compare the inherent characteristics of the separated bodies such as structure, material, and size. ...

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