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Specification for impressed marks in toolmarks examination in forensic
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Basic data
| Standard ID | GA/T 954-2011 (GA/T954-2011) |
| Description (Translated English) | Specification for impressed marks in toolmarks examination in forensic |
| Sector / Industry | Public Security (Police) Industry Standard (Recommended) |
| Classification of Chinese Standard | A92 |
| Classification of International Standard | 13.310 |
| Word Count Estimation | 6,664 |
| Date of Issue | 2011-11-01 |
| Date of Implementation | 2011-12-01 |
| Regulation (derived from) | Industry Standard Record Announcement No. 4 of 2012 (No. 148) |
| Issuing agency(ies) | Ministry of Public Security |
| Summary | This standard specifies the contents, test methods and statements of the inspection of the trace marks in the tool marks of forensic science. This standard applies to the forensic science of the traces of the identification of depression. |
GA/T 954-2011: Specification for impressed marks in toolmarks examination in forensic
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Specification for impressed marks in toolmarks examination in forensic
ICS 13.310
A92
People's Republic of China Public Security Industry Standards
Forensic tool marks in
Depression test specification marks
Issued on. 2011-11-01
2011-12-01 implementation
People's Republic of China Ministry of Public Security
Foreword
This standard was drafted in accordance with GB/T 1.1-2009 given rules.
Please note that some of the content of this document may involve patents. Distribution of this document
Institutions do not assume the responsibility to identify these patents.
This standard by the National Standardization Technical Committee of criminal trace detection technology at the Technical Committee (SAC/TC179/SC9) proposed and
Centralized.
This standard was drafted. Ministry of Public Security Evidence Identification Center.
The main drafters of this standard. Bai Yanping, Wang straight, classes Mansfield, Liu Weiping, Liu Jin, Choi-kai.
Forensic tool marks in
Depression test specification marks
1 Scope
This standard specifies the forensic science field Tool Trace dent test test content, test methods and test table views
Said the like.
This standard applies to forensic examination and identification of the dent.
Principle 2
Since the production, use and storage and other sectors so that tools and other marks having made a special appearance form, during the formation of dent in work
Special appearance form a contact portion will be reflected in all or part of the depression or traces (which reflected the characteristics of the type of species characteristics, reflecting a
Body Characteristics of minutiae). According to the same kind of recognition and identification principle, the use of science and technology by means of field marks and traces of the sample reflect
The kind of tools and features to test individual can be identified on the formation of traces of tools and individual species, the formation of the way, special tools
Point analysis to determine.
3 Terms and Definitions
The following terms and definitions apply to this document.
3.1
Marks making body toolscausingthemarks
The process of forming tool marks, the traces of urging the object that formed the object. Also known as the load object.
3.2
Body bearing marks objectscontainingwithquestionedtoolmarks
The process of forming tool marks, the destruction of the object that is the object of carrying traces. Also known as carrying objects.
3.3
Dent impressedmarks
After the body bearing marks made by the mechanical action marks the body, concave shape of plastic deformation in the normal direction of the contact portion is formed, the performance of the local body bearing marks
Collapse inward.
3.4
Marks from the edge thestartingedgeoftoolmarks
Marks the beginning of the destruction bearing traces formed in the body bearing marks the boundary marks made body.
3.5
Marks only edge theterminaledgeoftoolmarks
Traces of the destruction termination boundary bearing marks formed body made marks on the body bearing marks.
3.6
It marks the end of thebottomareaoftoolmarks
In the process of formation of traces, traces of making mark the bottom surface formed on the body bearing marks.
3.7
Mark wall thesidewaloftoolmarks
Marks and marks from the edges of the surface between the edges only.
...
