THE IMPACT OF INK ON THE LINE QUALITY CHARACTERISTICS OF A SIGNATURE IN MULTIPLE GENERATIONS PHOTOCOPIES
DOI:
https://doi.org/10.29121/shodhkosh.v5.i7.2024.4291Keywords:
Multi-Generation Copy, Photocopying Machine, VSC 6000, Line Quality FeaturesAbstract [English]
In criminal investigations, photocopied documents represent the most dependable evidence in the absence of the original document. In this research paper, an effort has been made to study the effect of ink colour on line quality features of signature in multigeneration photocopies in ten different subsequent generations. Some of the line-quality features that were looked at were the beginning and ending strokes of letters or words, handwriting features like ink smudging, and writer features like pen lifts and tremors. This study collected various documents featuring original signatures in blue, black, red, and green ink. We obtained the signatures from various official personnel on A4-sized white paper, using both gel and ballpoint pens. The original and photocopied signature samples such as original, generation 1, generation 2, generation 3 and till 10th generation were examined manually with the help of magnifying lens. The handwriting characteristics of original & photocopied signatures were examined under Video Spectral Comparator 6000 HS (Foster & Freeman Co Ltd England) under higher magnification power along with various light sources. This research was carried out to assist Forensic Document Examiners in recognizing the common difficulties found in the line quality features of multi-generation photo-copies of signature samples.
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