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GA/T 1676-2019: Forensic sciences - Code of practice for lifting blood footprint
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| Standard ID | Contents [version] | USD | STEP2 | [PDF] delivered in | Standard Title (Description) | Status | PDF |
| GA/T 1676-2019 | English | 139 |
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Forensic sciences - Code of practice for lifting blood footprint
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GA/T 1676-2019
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Basic data | Standard ID | GA/T 1676-2019 (GA/T1676-2019) | | Description (Translated English) | Forensic sciences - Code of practice for lifting blood footprint | | Sector / Industry | Public Security (Police) Industry Standard (Recommended) | | Classification of Chinese Standard | A92 | | Classification of International Standard | 13.310 | | Word Count Estimation | 6,643 | | Date of Issue | 2019 | | Date of Implementation | 2019-12-01 | | Issuing agency(ies) | Ministry of Public Security | GA/T 1676-2019: Forensic sciences - Code of practice for lifting blood footprint---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.
Forensic sciences - Code of practice for lifting blood footprint
ICS 13.310
A92
Public Safety Industry Standard of the People's Republic of China
Forensic science blood footprint extraction protocol
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. Publication of this document
The institution does not assume responsibility for identifying these patents.
This standard is proposed and managed by the Sub-Technical Committee for Trace Inspection of the National Criminal Technology Standardization Technical Committee.
This standard was drafted by. Anhui Provincial Public Security Department Physical Evidence Appraisal Management Office, Tongling City Public Security Bureau of Anhui Province, and the Ministry of Public Security Material Evidence Evaluation Center.
The main drafters of this standard. Wang Jun, Song Xu, Liu Jin, Ban Maosen.
Forensic science blood footprint extraction protocol
1 Scope
This standard specifies the basic requirements for on-site blood footprint extraction.
This standard applies to on-site blood footprint extraction in the field of forensic science.
2 Terms and definitions
The following terms and definitions apply to this document.
2.1
Live blood footprint bloodfootprintincrimescene
The added or reduced layer footprint formed by the medium blood left at the scene of the criminal case or the place related to the case or event.
3 Equipment and environmental requirements
3.1 Equipment
SLR cameras, tripods, color filters, multi-band light sources, ultraviolet light sources, scales, cotton swabs, tweezers, etc.
3.2 Environmental requirements
Hygienic and clean, well ventilated, with dark field conditions.
4 General requirements for on-site blood footprint extraction
4.1 On-site blood footprint should be photographed and fixed, then extracted and packaged.
4.2 On-site blood footprint extraction personnel should use corresponding personal protective equipment, wear gloves, hoods, masks, etc. Human body extraction should be prevented
The blood footprint of the site was contaminated by liquid and hair.
4.3 When extracting the blood footprint on site, the olfactory source should be extracted as much as possible in order to comprehensively utilize the blood footprint.
4.4 When extracting the blood footprint on site, the appropriate amount of blood marks forming the footprint should be extracted to check the species and who left it.
4.5 The blood footprint on site should be numbered, recorded, and the name of the case or event, the number of blood footprints, the location of extraction, the time of extraction, and the time
Take people.
4.6 When taking photos to extract blood footprints, a standard rectangular scale should be used.
5 Basic operation method
5.1 Optical method
5.1.1 First illuminate the blood footprint with white light at different angles and make repeated observations. Take photos when you find the best results.
5.1.2 Observe with a multi-band light source, use 450nm light, illuminate and observe from different angles, and add an orange color filter to find the best effect
Take photos when you are.
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