Identification of writing marks from pencil lead through machine learning based on laser-induced breakdown spectroscopy

Chen, Yujiang; Liu, Yuzhu; Han, Boyuan; Yu, Wu; Wan, Enlai

doi:10.1016/j.ijleo.2022.169008

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Forensic Document Examination1

Organic Materials1

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2022

2024

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Cited by 7 publications

(15 citation statements)

References 33 publications

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“…Chen et al [ 394 ] analyzed pencil marks and leads by LIBS to identify the kind of pencil. Four pencils with different hardness and blackness were tested.…”

Section: Forensic Document Examinationmentioning

confidence: 99%

Interpol questioned documents review 2019–2022

Deviterne-Lapeyre

Ibrahim²

2023

Forensic Science International: Synergy

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“…Chen et al [ 394 ] analyzed pencil marks and leads by LIBS to identify the kind of pencil. Four pencils with different hardness and blackness were tested.…”

Section: Forensic Document Examinationmentioning

confidence: 99%

Interpol questioned documents review 2019–2022

Deviterne-Lapeyre

Ibrahim²

2023

Forensic Science International: Synergy

View full text Add to dashboard Cite

“…A paper was presented by Chen et al who identied writing marks from pencil lead through machine learning based on LIBS. 346 In this study, writing marks from different pencils (i.e., 6B, 4B, 2H and 4H) were taken as the examples. They used LIBS to obtain analytical data for Al, C, Ca, Fe, Mg and Si.…”

Section: Organic Materialsmentioning

confidence: 99%

Atomic spectrometry update: review of advances in the analysis of metals, chemicals and materials

Carter¹,

Clough

Fisher

et al. 2022

J. Anal. At. Spectrom.

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“…Document examination stands as a key investigation in forensic science. Its primary focus lies in identifying the source of documents and verifying their legitimacy [1]. The growing market for printers, computers, scanners, and photocopiers fuelled the progress of printing technology, which inadvertently promoted the creation of printed document forgeries.…”

Section: Introductionmentioning

confidence: 99%

A Review of Laser-Induced Breakdown Spectroscopy (LIBS) for Document Examination: Fundamentals, Mechanism, and Application

Ahmad Sabri,

Md Rasid,

Abd Rashid

et al. 2024

Curr. Appl. Sci. Technol.

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Document examination is one of the main types of investigations in forensic science, particularly in cases involving questioned documents. These documents include assorted forms of written or printed texts on different substrates (paper, banknotes, etc.) with uncertain authenticity. Ink analysis plays a vital role in document examination. It is often focused on understanding the chemical composition of the ink, which can be colorants, solvents, vehicles, and additives. Document examiners utilize several analytical tools including laser-induced breakdown spectroscopy (LIBS). The use of this instrument has gained prominence for its ability to detect multiple elements, offer straightforward sample preparation, minimize sample destruction, and provide fast and accurate readings. This paper reviews previous research that employed LIBS for document examination, highlighting its modern applications and approaches in analysing various types of documents. Furthermore, this paper discusses the strengths and weaknesses of this instrument as a viable technique in the field of document examination.

show abstract

Identification of writing marks from pencil lead through machine learning based on laser-induced breakdown spectroscopy

Cited by 7 publications

References 33 publications

Interpol questioned documents review 2019–2022

Interpol questioned documents review 2019–2022

Atomic spectrometry update: review of advances in the analysis of metals, chemicals and materials

A Review of Laser-Induced Breakdown Spectroscopy (LIBS) for Document Examination: Fundamentals, Mechanism, and Application

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