Page 15 - Special Issue Forensic PDF Updated

1st International Forensic Science E-Conference

Microscopic examination indentations created, using with different wave-
The questioned signatures fluid ink pen or fountain lengths. Under Oblique
marked Q1, Q2, Q3, and pen. Zoom stereo-micro- IR light source (λ= 870

Q4 observed under stereo- scope was also used to nm), the indented traced
microscope, the indenta- capture the magnified im- guidelines of the signature

tions were observed along age as shown in figure 3 was observed and it also
the path of the signature Examination under Video had definite signs of forg-
in all the questioned sig- Spectral ComparatorThe ery such as tremors, slow

natures indicating that the examination of the ques- & drawn movement and
signatures were forged tioned signatures under defective line quality etc;

using pointed instrument Video spectral comparator as shown in figure 4
causing indentations of (VSC-4307) was done us-
the model signature and ing various light sources

the ink was filled on the

Further, the superimpo- questioned signature Q1 respectively. It was
sition of signatures was was used as reference im- observed that all the four
examined under VSC to age and the questioned signatures exactly super-

check if all the questioned signatures Q2, Q3 and Q4 imposed with one another.
signatures were traced were used as examined This observation

from a single source. On image. The overlapping of indicates clear signs of
superimposition of signa- Q1 and Q2 (figure 5), Q1 forgery and all the four
tures under VSC, the and Q3 (figure 6), Q1 and signatures were traced

Q4 (figure 7) were done from a single source.

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