Elementary vs. Advanced techniques: A Comparative Approach to Examine Various Types of Blue Inks

Elementary vs. Advanced techniques: A Comparative Approach to Examine Various Types of Blue Inks
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© 2021 by IJETT Journal
Volume-69 Issue-11
Year of Publication : 2021
Authors : Mandeep Kaur Purba, Shruti Gupta, Reeta Rani Gupta
DOI :  10.14445/22315381/IJETT-V69I11P222

How to Cite?

Mandeep Kaur Purba, Shruti Gupta, Reeta Rani Gupta, "Elementary vs. Advanced techniques: A Comparative Approach to Examine Various Types of Blue Inks," International Journal of Engineering Trends and Technology, vol. 69, no. 11, pp. 170-179, 2021. Crossref, https://doi.org/10.14445/22315381/IJETT-V69I11P223

Abstract
Forensic document examiners` wide range of tasks incorporate the expertise to determine the origin of penmanship of the document; segregate among authentic, imitated or disguised penmanship; analyze components and characteristics of inks, papers, and different materials associated with documents. The present study focuses on the comparative aspects between various simplified techniques used for blue pen ink examination with advanced instrumental techniques such asSEM and SEM-EDX. The samples were analyzed primarily for different types of alterations, overlapping of ink, and composition of ink initially by using preliminary techniques followed by advanced instrumental techniques. The examination of ink led to unexpected and astonishing results. In spite of advancements in technology, the success rate of simplified techniques was found to be higher than 90% for all the parameters studied, that is, alterations, obliterations, and overlapping of ink, whereas advanced instrumental techniques did not ascertain to be of much use except for the determination of the composition of the ink. Even in today’s advanced digital age, selected simplified techniques have proved to be reliable and gave easily reproducible results for the detection of alterations and overlapping of ink. Nonetheless, the combination of simplified and advanced instrumental techniques can also be used for the determination of the composition of the ink. This article provides an insight to the examiners to select the best suitable non-destructive technique/s and conduct the examination accordingly.

Keywords
Questioned documents; ink examination; hand lens, light sources; UV chamber; SEM-EDX

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