Page 9 - August 15th 2020 Issue Forensic

Crime Scene: A Forensic Market

Blood spatter analysis is chances that some drag detected and it has to be
also conducted by foren- marks are formed by the documented and photo-
sic experts which can help blood pool lying behind/ graphed properly.

in determining the type beside the body which can After this, the collection
of weapon used in con- help in differentiating a of blood with proper and

ducting the crime, type of primary crime scene from sterile equipment and cot-
crime which occurred and a secondary one. The cul- ton swabs is done and it
to determine the origin prit who thinks to be extra is stored properly in vials

of the blood spatter, for safe and cleans the blood with appropriate preserv-
example blood spatters pool with the help of nor- ing agents such as sodium

formed by a high veloc- mal swabbing/cleaning chloride, sodium fluoride
ity moving bullet, a fine methods but, his/her extra and EDTA etc. and sent
arterial spray pattern can sharpness is of no value to Forensic Science Labo-

occur. There are several in presence of spraying ratory for examination
cases in which the culprit agent luminol which is where various tests are

tries to hide the body and a chemical which glows performed such as blood
in that case he/she tries to in the dark when sprayed grouping, estimating age
move/drag/shift the body over the cleaned blood of blood stain, to check

from one place to another and the presence of blood the presence of any toxic
and in that case there are and blood patterns can be material and various con-

clusive and confirmatory
test for identifying the
culprits and to rule out the

suspects are performed for
example, DNA test, Barr

body estimation test etc.
In various cases, like in
robbery, dacoity, docu-

ment forgeries, murder,
sexual assault etc. there

are chances that the
chance prints are left by
the perpetrator. Mostly

the latent prints which are
also called as the invis
Figure 4: A pool of blood from Google.com

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