Page 8 - August 15th 2020 Issue Forensic

Crime Scene: A Forensic Market

know the time since death. The examination of the like soil, glass, fiber, shoe
After this the late changes dead body or the medi- patterns, footmarks, bite
can be observed which colegal autopsy which marks, fingerprints, skid

includes putrefaction / de- includes external, inter- marks, blood spatter pat-
composition stage which nal and histopathological terns can be left by the

is the stage of dissolution examination of the body perpetrator unknowingly
of the body tissues result- is usually conducted by or may be taken from the
ing in breaking down of a Medical Practitioner crime scene by the culprit

complex organic constitu- and the autopsy report is which can help a forensic
ents into simpler inorganic submitted to the police in expert to solve mysterious

ones which occurs due to India which is then for- and complex cases.
the autolysis i.e. body’s warded to the Forensic The another most com-
own cell eats each other science laboratory along mon evidence that can

and by the action of Clos- with viscera and samples be found at a scene of
tridium Welchii bacteria of organs for further crime is blood which can

which develops greenish analysis. In FSL, the ex- be found in various cases
patches over the skin and amination of the viscera is like murder, rape, sexual
also gives a marbled ap- conducted to find out and assault, mass killings. It

pearance to the body. At assure the cause and mode is a significant forensic
this time the body also be- of death. Viscera can help evidence and to opine

gins to emit a bad foul or Forensic Experts estimate whether the encountered
nauseating smell because the amount of toxin, type substance is blood or not,
of gradual development of of toxin and so many more a forensic expert conducts

the gases of putrefaction findings that can help po- various presumptive tests
like hydrogen sulphate gas lice in their investigation. like benzidine and phenol-

which is responsible for It must not be forgot- phthalein tests and vari-
giving a bloated or dis- ten that according to the ous confirmatory crystal
torted appearance. At last Locard’s principle of ex- tests like Teichmann and

after several weeks, skel- change everything leaves Takayama tests. Before
etonization of the body a trace that means that doing further analysis, it

occurs which may fasten when a criminal enters a is of utmost importance to
depending on the external crime scene, he/she al- state whether the blood is
environment and tempera- ways leaves something in of human or animal origin,

ture conditions. the crime scene and vice- for that reason precipitin
versa. Various evidences tests are done.

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