csi- fact vs fiction
Post on 06-Apr-2018
232 Views
Preview:
TRANSCRIPT
-
8/3/2019 CSI- Fact vs Fiction
1/12
Crime Scene
InvestigationFact VS Fiction
By Niki Tziraki
-
8/3/2019 CSI- Fact vs Fiction
2/12
What is Forensic Science?
Forensic science literally means science
associated with the legal system. It is the
use of scientific methods such as fingerprint
analysis and ballistics in order to discoverinformation about a case. Forensics have
been made popular by TV shows such as CSI,
which show people working in labs at rapidspeeds using technology not yet invented.
What differences are there between real life
and TV in the field of Forensics?
-
8/3/2019 CSI- Fact vs Fiction
3/12
Usable Evidence at a Crime Scene
Real life:
Only 5% to 10% of all US
cases have evidence that
can be used. Collecting
evidence can take several
hours, as the CSI officers
need to seal the crime
scene, mark the evidenceon a grid and carefully
photograph it.
On CSI:
100% of all cases have
usable evidence. The CSI
officers spent minimum
time collecting evidence
and concrete evidence is
usually noticed
accidentally by one ofthe main characters.
-
8/3/2019 CSI- Fact vs Fiction
4/12
Analysis of DNA Samples
Real life:
Processing DNA samples
can take from a few
weeks to several months,
depending on the quality
of the samples.
Toxicological testing is a
delicate process thatrequires a lot of time and
effort. The results can
take days to become
available.
On CSI:
All blood and print
analysis results are
available at approximately
33 seconds. Toxicological
testing takes less than 5
minutes.
-
8/3/2019 CSI- Fact vs Fiction
5/12
Scientists required to process a
DNA
sampleReal life:
A DNA sample can pass
through anywhere from
two to ten people. Tests
might need to be
performed multiple times
in order to be verified.
On CSI:
Valid DNA analysis only
requires one person.
-
8/3/2019 CSI- Fact vs Fiction
6/12
Conclusiveness of Forensic tests
Real life:
Only 30% of all US cases
DNA-relate evidence that
has ties to another case.
On CSI:
100% of all cases have
conclusive evidence that
can be used to track
down a criminal.
-
8/3/2019 CSI- Fact vs Fiction
7/12
CO.D.I.S.
(Combined DNA
Index System)Real life:
The U.S. CO.D.I.S.
contains 3.3 million DNA
samples from convicted
offenders (as of 2006).
On CSI:
The Combined DNA Index
System has DNA samples
from the entire U.S.
population (312 million
people).
-
8/3/2019 CSI- Fact vs Fiction
8/12
CS Investigators
Real life:
According to Police
Sergeant Stephen Miller,
in Miami, 29 well-trained
CSI investigators are a
cohesive unit.
On CSI:
Officers discuss cases,
cooperate and can be
seen socializing as well.
CSI is close to reality in
this case.
-
8/3/2019 CSI- Fact vs Fiction
9/12
CSI Personnel Duties
Real life:
Do not CSI personnel do
not interview suspects or
make arrests. They
investigate the crime
scene, gather evidence
and experts in toxicology,
ballistics, medicalexamination and other
disciplines perform tests
to analyze the evidence.
On CSI:
Forensic officers can
often be seen taking part
in raids and other parts of
the investigation that
have nothing to do with
the crime scene. They can
usually be seen drivingHummers.
-
8/3/2019 CSI- Fact vs Fiction
10/12
Eyes open, mouth shut, hands in
pockets.Real life:
Crime scene investigators
follow specific
instructions when
examining a scene: Eyes
open, mouth shut,
hands in pockets.. They
do so in order to do
their job in the best way
possible.
On CSI:
The investigators loosely
examine the place where
the body was found and
they interact with
witnesses and they touch
things, usually without
latex gloves on.
-
8/3/2019 CSI- Fact vs Fiction
11/12
Fact VS. Fiction
A Crime Scene Officers job is hard and
demanding but its character often altered in
television shows. Through the use of
impossibly advanced technology analysis is
made to look easier than it really is, while a
CSIs duties are complicated by irrelevant
participations in raids and questioning.Because of such events, CSI-related shows do
not portray the true image of Forensic science.
-
8/3/2019 CSI- Fact vs Fiction
12/12
Bibliography
Innes, Brian. Crime and Detection: Forensic Science.
Broomall, Mason Crest Publishers, 2005
Bowers, Vivien. Crime Science. Toronto, Greey de
Pencier Book Inc., 1997
The CSI Effect ForensicScience.net. 2010
http://www.forensicscience.net/csi-effect-infographic
Warrington, Dick. Back to Basics ForensicMagazineAugust 5, 2011.
http://www.forensicmag.com/article/back-basics
top related