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GA/T 1700-2023: Forensic sciences - Tracking code examination for color laser printed and copied documents
Status: Valid GA/T 1700: Evolution and historical versions
| Standard ID | Contents [version] | USD | STEP2 | [PDF] delivered in | Standard Title (Description) | Status | PDF |
| GA/T 1700-2023 | English | 159 |
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Forensic sciences - Tracking code examination for color laser printed and copied documents
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GA/T 1700-2023
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| GA/T 1700-2019 | English | 239 |
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Forensic sciences--Methods for development of tracking codes in color laser printers and copiers
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GA/T 1700-2019
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PDF similar to GA/T 1700-2023
Basic data | Standard ID | GA/T 1700-2023 (GA/T1700-2023) | | Description (Translated English) | Forensic sciences - Tracking code examination for color laser printed and copied documents | | Sector / Industry | Public Security (Police) Industry Standard (Recommended) | | Classification of Chinese Standard | A92 | | Classification of International Standard | 13.310 | | Word Count Estimation | 8,861 | | Date of Issue | 2023-03-01 | | Date of Implementation | 2023-12-01 | | Issuing agency(ies) | Ministry of Public Security | GA/T 1700-2023: Forensic sciences - Tracking code examination for color laser printed and copied documents
---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 13.310
CCSA92
Public safety industry standards of the People's Republic of China
Replace GA/T 1700-2019
Forensic Science Color Laser Printing (Photocopying)
File tracking password check
Published on 2023-03-01
Implemented on 2023-12-01
Released by the Ministry of Public Security of the People's Republic of China
Foreword
This document complies with the provisions of GB/T 1.1-2020 "Standardization Work Guidelines Part 1.Structure and Drafting Rules of Standardization Documents"
Drafting.
This document replaces GA/T 1700-2019 "Forensic Science Color Laser Printing (Copying) Document Tracking Password Display Method" and is consistent with
Compared with GA/T 1700-2019, in addition to structural adjustments and editorial changes, the main technical changes are as follows.
---Added some terms and definitions (see Chapter 3, Chapter 2 of the.2019 edition);
---Added instruments and tools (see Chapter 4);
---Added the determination of the basic unit of the tracking code lattice (see Chapter 6);
---Added the application of tracking passwords in printing (copying) document inspection (see Chapter 7);
---Added precautions (see Chapter 8).
Please note that some content in this document may be subject to patents. The publisher of this document assumes no responsibility for identifying patents.
This document is proposed and submitted by the Document Inspection Sub-Technical Committee of the National Technical Committee for Standardization of Criminal Technology (SAC/TC179/SC10).
Return to home.
This document was drafted by. Hubei Police College, Physical Evidence Identification Center of the Ministry of Public Security, China Criminal Police College, Yantai Public Security Bureau, Guangdong Province
Public Security Department, Heilongjiang Provincial Public Security Department, Hubei Provincial Public Security Department, Wuhan Municipal Public Security Bureau, Wuxi Municipal Public Security Bureau, Dalian Municipal Public Security Bureau.
The main drafters of this document. Li Jiangchun, Han Xingzhou, Hao Hongguang, Li Biao, Guo Zihan, Han Wei, Qin Da, Wang Xiaoguang, Yan Haiqian, Hu Yingmei,
Liu Cunxiao, Wang Jinsheng, Li Guoqing, Wang Jun, Li Sheng, Zhu Ruolan, Zhang Jing, Wang Sanyi, Yuan Jing.
The previous versions of this document and the documents it replaces are as follows.
---First published in.2019 as GA/T 1700-2019;
---This is the first revision.
Forensic Science Color Laser Printing (Photocopying)
File tracking password check
1 Scope
This document specifies the instruments and tools for tracking code inspection of color laser printing (copying) documents in the field of forensic science, and tracking code points.
The display of the matrix, the determination of the basic unit of the tracking code dot matrix, the application of the tracking code in the inspection of printed (copied) documents, and precautions.
This document is applicable to the use of tracking codes for species identification and identity of color laser printed (copied) documents in the field of forensic science.
Inspection and inspection of document creation time.
2 Normative reference documents
This document has no normative references.
3 Terms and definitions
The following terms and definitions apply to this document.
3.1
tracking code trackingcode
Potential, regularly arranged tiny yellow ink dots on color laser printed (copied) document pages.
Note. Also known as secret mark and digital watermark.
3.2
Under certain conditions of equipment, light source and magnification, the tracking code on the color laser printing (copying) document can be clearly displayed.
Now, for the process of fixation and extraction.
3.3
A tracking code dot pattern that appears periodically on a color laser printed (copied) document page.
3.4
boundaryzone
Divide the space area between two adjacent tracking code lattice basic units.
3.5
borderline borderline
Lines are divided into two adjacent basic units of the tracking code dot matrix.
4 Instruments and Tools
Instruments and tools include but are not limited to.
a) Scanner with resolution no less than 600dpi;
b) Microscope with measuring function;
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