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GA/T 1677-2019: Forensic sciences--Technical specifications for examination of morphological features of three-dimensional footwear impressions
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Forensic sciences--Technical specifications for examination of morphological features of three-dimensional footwear impressions
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GA/T 1677-2019
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Basic data | Standard ID | GA/T 1677-2019 (GA/T1677-2019) | | Description (Translated English) | Forensic sciences--Technical specifications for examination of morphological features of three-dimensional footwear impressions | | Sector / Industry | Public Security (Police) Industry Standard (Recommended) | | Classification of Chinese Standard | A92 | | Classification of International Standard | 13.310 | | Word Count Estimation | 6,656 | | Date of Issue | 2019 | | Date of Implementation | 2019-12-01 | | Issuing agency(ies) | Ministry of Public Security | GA/T 1677-2019: Forensic sciences--Technical specifications for examination of morphological features of three-dimensional footwear impressions
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Forensic sciences--Technical specifications for examination of morphological features of three-dimensional footwear impressions
ICS 13.310
A92
Public Safety Industry Standards of the People's Republic of China
Image features of forensic stereoscopic shoe prints
Inspection Technical Specifications
Published on October 14,.2019
2019-12-01 Implementation
Issued by the Ministry of Public Security of the People's Republic of China
Foreword
This standard was drafted in accordance with the rules given in GB/T 1.1-2009.
Please note that some content of this document may involve patents. The issuer of this document does not assume responsibility for identifying these patents.
This standard was proposed by the National Criminal Technology Standardization Technical Committee Trace Inspection Sub-Committee (SAC/TC179/SC9) and
Be in charge.
This standard was drafted by. China Criminal Police Academy, Ministry of Public Security Material Evidence Appraisal Center.
The main drafters of this standard. Tang Qingming, Liu Jin, Gao Yi, Dong Jiaying, Ma Yue, Yao Li, Shi Limin, Liu Weiping, Feng Lei.
Image features of forensic stereoscopic shoe prints
Inspection Technical Specifications
1 Scope
This standard specifies the classification of three-dimensional shoeprint image features and the principles, equipment, operation procedures, inspection records and inspection opinions of inspection.
This standard is applicable to the examination of the image characteristics of forensic three-dimensional shoe prints and the preparation of related legal documents.
2 Normative references
The following documents are essential for the application of this document. For dated references, only the dated version applies to this article
Pieces. For the cited documents without date, the latest version (including all amendments) applies to this document.
GB/T 23865-2009 Proportional photography rules
3 Terms and definitions
The following terms and definitions apply to this document.
3.1
Sole wearing characteristics solewearcharacteristic
The shoe print reflects the change in the structure of the sole due to friction, squeezing, bending, etc. during the wearing of the shoe
feature.
3.2
Sole repairing characteristics solerepairingcharacteristic
The shoeprint reflects the characteristics of the shoe sole structure during the repair process, due to seam repair, nail repair, adhesive repair, etc.
4 Principle
Affected by factors such as manufacturing, use, maintenance and preservation, the pattern structure, manufacturing process, modification and defect characteristics of each (pair) shoe
Signs are different and can be reflected on shoe prints. According to the same identification theory, shoe types and individuals can be identified.
5 Equipment
Photographic equipment, gypsum powder, measuring tools such as rulers, protractors, sub-gauges, special pencils, transparent film, grid film, copy film, zoom
Mirrors, microscopes, scanners, etc.
6 Operation steps
6.1 Preliminary inspection
6.1.1 Understand the acceptance situation, the leftover of the inspection material shoeprint, the extraction situation and the production situation of the sample shoeprint.
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