Abstract
In
the book, Wambaugh Joseph outlines the challenges that the police detectives
normally face their attempts to identify the real suspects in major cases as
murder and rape. In the book, two girls are raped and consequently brutally
murdered. The investigations normally led to the arrest of a suspect whom the
police believe is the main offender. However, the DNA fingerprinting that Alec
Jeffreys implements reveal that the suspect in custody is in fact not the
killer and thus released. The preceding investigations of the samples from more
than 4000 suspects in the community lead to the arrest of the real culprit. The
essay underscores the significance of DNA fingerprinting in assisting the
criminal justice departments ensuring that there is the simplification of the
process of identifying suspects. The identification of the suspects is the
initial phase with the formal investigations being left to the conventional
investigations. The essay additionally assesses the changes in the DNA
fingerprinting as well as the issues that the technology is facing.
Body
The
blooding a book by Wambaugh Joseph is in relation the case that involve the
rape of the fifteen-year-old Lynda Mann in the year 19830 (McCoy, 2015). She
was savagely raped and consequently strangled, with her body found in a shady
footpath close to the English village of Narborough. In the same year, a there
is the establishment of a massive dragnet encompassing 150 police personnel but
nonetheless the case remained unsolved. Three years after the initial case, the
killer struck again raping and killing the teenager Dawn Ashford a few meters
from the location where Linda brutally murdered. The positive outcome that
resulted from the case came four years later via a scientific breakthrough in
the largest manhunt in British crime history. It was after the blooding of over
4,000 men in the region that led to the identification of the real killer (McCoy,
2015).
In
the initial investigations, the investigators tried to follow all the leads
they could find by questing all the possible suspects but a year later and with
no success, the squad was dissolved. The closures of the squad made the village
go back to their normal lives, until 1986 following the discovery of another
girl raped and strangled just a few steps from where the lifeless body of Linda
found (Santos, 2014).
In
the second however the police squeeze a kitchen porter who had been seen
leaving the scene of the crime into what the police considered to the
confession, leaving the police satisfied with their work. However, another
individual, Alec Jeffreys who was a scientist at Leicester University was not
satisfied with the confession and continued with his work in new forensic
investigations. Jeffreys working with the police matches the DNA samples from
the suspected killer with the DNA found in the bodies of the murdered girls. It
follows that the every individual’s DNA other than in the case of twins is
normally unique and after Jeffrey compared the blood samples from the porter
with the semen found on the bodies found no match. The resultant outcome is
that the porter is set free, and a fresh manhunt of the killer starts (McCoy,
2015).
The
manhunt that followed encompassed the biggest roundup in the British history
that saw the arrest of 4000 possible suspects who were tested leading to the
arrest of the 27-year-old bakery worker in September 1987 (Varsha, 2006). The
case was the first that had solved by the use of DNA testing referred to as
genetic fingerprinting. In his writings,
Joseph Wambaugh clearly demonstrates his excellent investigative abilities. His
stories posit efficient demonstrating people’s portraits as well as the as well
as the police and the methods they apply in their investigations. He describes
the relentless the methods the police utilize in their questioning, the
emotional swings they apply along with the empty leads that lead them to the
frustrating paths (McCoy, 2015).
In
his work, he describes the through processes as well as the efforts that the
police undertake in carrying out their investigations. Through this element, it
is possible for the public to take a preview of the difficult task that
investigators normally undertake their attempts to catch the real suspect. As
is the case in abreast of the Porter, the police believe they have arrested the
real criminal; the suspects’ family, on the other hand, is assertive that their
relative is innocent. The introduction of the DBA testing makes it possible to
set the case on the right course as the real criminal is arrested while the
initial suspect is set free (Abinaya, Narang, & Bhardwaj, 2015).
In
the sexual murder or rape investigations, the British police should carry out a
large-scale DNA testing of all the men in the area that the crime took place.
Such first case was in light of the Narborough murders inquiry whereby all the
male residents of the village between the ages of 17 and 34 years were
requested to submit their saliva and blood samples voluntarily. The voluntary
submission of the samples was with the objective of eliminating them from the
suspects’ lists of the pathway murders. As seen, the police got more than 4000
samples from the men in Littlehorpe, Narborough, and Enderby (Chaudhary, Dogra,
& Raina, 2015). A lot of police resources, as well as laboratory costs, are
evident in the processes of these bloodings. Thus, the British police followed
DNA screens directed the intelligence they collect. In this case, the individuals are normally
grouped in terms of their priorities under the guidance of their criminal
record, age, proximity to the crime scene as well any other relevant criteria.
In the cases that are normally dealing with serial crimes, application of
geographic profiling is normally very significant in narrowing down the suspect
list (Santos, 2014).
DNA Fingerprinting
DNA
fingerprinting known as DNA profiling, genotyping, genetic fingerprinting
entails the method of identifying as well as isolating the variable elements
present in the DNA base pair. Alec Jeffreys developed the technique in 1984
following his noticing of the particular sequences of the highly variable DNA
repeated within the genes. The rationale behind the application of the DNA
fingerprinting is to assist in the identification of individuals when most other
methods are not applicable (Varsha, 2006).
DNA in Criminal Justice
The
police detectives in the early years came to a realization that every
individual normally different patterns of the tips of their fingers, making the
fingerprints the standard mode of identification. However the fact that there
is a possibility of altering the patterns on the fingers via surgery as well as
many other methods makes it an unreliable model of identifying criminals.
However, the application of DNA that normally possesses living cells makes it
impossible to alter thus offering the best identification system for the
players in CJS (Abinaya,Narang, & Bhardwaj, 2015).
DNA
exists for only a single individual and Jeffreys coined the term DNA
fingerprinting to envision the powerful use of the advancement. Utilization of
a drop of blood, single hair, semen or any other body fluid offers a perfect
medium for the identification of an individual. The application of DNA
fingerprinting is significant in the identification of people, population study
as well as forensic investigations. The area of forensics, as well as crime
detection, is the most promising area of DNA fingerprinting and at the same
time the most controversial. The DNA fingerprinting technology relies on a
unitary assumption of the fact that there are no two individual sharing the
same DNA. The 3 billion base sequences normally encompass four nucleotides.
They include the thymine (T), adenine (A), cytosine (C) as well as the guanine
(G) (Chaudhary, Dogra, & Raina, 2015). In the DNA fingerprinting;
scientists normally base their assessment of the segment whereby the sequences
are varying a huge deal from one person to another.
Criminals
in most cases leave some evidence of their identity such as leaving semen,
hair, blood as well as saliva. These materials that criminals normally leave at
the crime scene normally undergo careful collection and await the preparation
of their analysis. In the analysis the evidence from the crime scene, such as
saliva or hair in our case from the prime suspect and a control specimen
belonging to the victim and who’s DNA had known. The preferable method applied
in obtaining the sample for the reference is normally a buccal swap via the
utilization of a cotton or small brush to collect the sample of cells from the
inside surface of the cheek (McCoy, 2015). The rationale behind this attribute
is that it reduces the likelihood of causing contamination to the sample. The
buccal swab is normally easy as it requires a rapid single step process in
contrast to the alternative methods that normally demand multiple steps. The
performance of every additional procedure in the procurement of the DNA sample
normally creates an additional opportunity for human error. Thus, the avoidance
of causing contamination to the sample is possible via the collection of the
sample in place with low traffic in addition to expecting that the collector
wears a mask during the procedure. In the event that the buccal swab is not a
viable option, the alternative methods are applicable in the collection of the
saliva, semen, blood sample as well as theater appropriate fluids or tissues (Abinaya,
Narang, & Bhardwaj, 2015).
DNA Typing
The
objective of the utilization of the forensic scientists encompasses the
establishment of a genetic profile of the individual via discovering the
alleles that are prevalent in the selected loci. After the collection of the
biological material from the scene of the crime, the DNA is initially extracted
from its biological source and consequently measured to assess the recovered
DNA quantity. Following the isolation of the DNA from its cells, there is the
copying of definite regions using a technique referred to as the polymerase
chain reaction. The procedure leads to the production of millions of duplicates
of each DNA segment of interest and consequently allowing for the examination
of the minute amounts of DNA segment. The moment there is a declaration of a
genetic, there is the generation of a statistic conveying how common or rare
the matching genetic profile is in the context of the general population. The statistic
is normally diminutive and could help the prosecutor in securing a conviction
during the same time it could mislead the jury (Chaudhary, Dogra, & Raina,
2015).
The
changes in DNA technology have altered numerous aspects of the criminal justice
system, with the utilization of DNA evidence being the best example. The
utilization of DNA has altered modified via the allowing of other materials
other than blood utilized in the identification. The DNA technology applies to the resolution
of criminal cases as well as the implication of being guilty as well as not
guilty, life or death. The DNA fingerprint technology is applicable in the
analyzing as well as proving innocence or guiltiness of suspects in various
crimes with immense accuracy. The use of DNA evidence in comparisons of the law
enforcement databases allows the identification of the criminal and at the same
time rule out the suspects (Varsha, 2006).
At
the moment, the use of DNA evidence presents the most powerful tool for
investigations that is currently available. The adoption of DNA evidence has
altered the crime fighting landscape in a dramatic manner. The development and
the expansion of the databases containing the DNA profiles at the national,
local as well as state levels have greatly enhanced the ability of the local
authorities to solve cases using the DNA samples. Databases that contain the
records of the convicted offenders normally stores thousands DNA profiles of
the probable suspects that for comparisons against the DNA profiles from the
various crime scenes (Chaudhary, Dogra, & Raina, 2015).
The
DNA fingerprinting technology has brought change to almost all aspects of the
criminal justice system. It has led to a
modification of the manner of viewing the old as well as the unsolved crimes,
rejuvenating some of the cases previously believed to be unsolvable. It has
additionally modified the belief that people previously had in the context of
the reliability that of the judicial system via the post-conviction
exonerations. The DNA evidence has additionally gone to an extent of proving
the means of exonerating some of the criminals that could be facing death as
well as those serving life prison sentences (Abinaya, Narang, & Bhardwaj,
2015).
One
of the advantages that DNA exhibits entail utilization of DNA fingerprinting in
solving some of the unsolved cases, identifying victims in mass terrorist
attacks as well as in aircraft accidents. Additionally the DNA fingerprinting
has consequently elevated the possibility of locating assailants in various
criminal offenses especially the sexual as well as violent crimes. The location
of the DNA is in every cell of the human body, thus making it possible to
utilize any part of the body in establishing an individual’s identity. Thus the
DNA fingerprinting is very significant in the resolution of homicide cases
whereby there is the disfiguration of the body, with fingers, teeth among other
features destroyed (Chaudhary, Dogra, & Raina, 2015).
Benefits as Well As Risks of the
Forensic DNA Databases
The
continued development in the size of the forensic DNA databases brings about
the issues relating to the criterion for the inclusion as well as retention.
Additionally issues relating to the efficiency doubts, an infringement of
privacy as well as commensurability of the databases with such large quantity
of personal data normally arise. In comparison the past experiences, the
utilization of the DNA technology is not only for the serious crimes but all
the crimes are now subject to DNA analysis. Conversely, civil liberties, as
well as rights, are vital for the various democratic societies making any
aspirations relating to the extension of the forensic databases to the entire
population face condemnation. According to Alec Jeffreys, the UK police wrongly
collect the DNA profiles as they collect it from the arrestees without
convictions, innocent individuals without ant priors and suspects cleared in
the investigations (Abinaya, Narang, & Bhardwaj, 2015).
Additionally
he contends that the large national forensic databases as the NDNAD could
easily socioeconomically skew. The majority of the matches that normally result
from these databases are normally about the minor offenses as theft but not for
the main offenses as murder and rape. DNA is normally more objective as well as
accurate in comparison to the other forensic disciplines that base their
evidence on the subjective interpretations as well as judgments. On the other
hand, it is right to say that DNA is normally not infallible and is liable to
corruption by the environmental factors such bacteria, heat as well as direct
sunlight (Abinaya, Narang, & Bhardwaj, 2015).
Additionally
it is normally subject to human error as well as fraud in the comparison of the
samples collected from the suspects with those from the scene of the crime.
Proponents of the DNA fingerprinting technology normally argue that the DNA
databases are normally not meant to replace the conventional criminal
investigations but conversely serve to complement them. The realization this attribute
is that these databases should principally assist in the identification of the
potential suspects sooner, giving way to more advanced investigations using the
conventional means. Advocates of DNA fingerprinting further argue that the
obtaining of these samples for the government databases do not raise privacy
issues as the procedure in the procuring of the DNA sample is less invasive
that taking blood samples (Varsha, 2006).
References
McCoy,
W. K. (2015). The Blooding. Library Journal, 140(11),
79.
Abinaya,
E., Narang, P., & Bhardwaj, A. (2015). FROG - Fingerprinting Genomic
Variation Ontology. Plos ONE, 10(8), 1-11.
doi:10.1371/journal.pone.0134693
Chaudhary,
G., Dogra, T. D., & Raina, A. (2015). Evaluation of blood, buccal swabs,
and hair follicles for DNA profiling technique using STR markers. Croatian
Medical Journal, 56(3), 239-245. doi:10.3325/cmj.2015.56.239
Varsha.
(2006). DNA Fingerprinting in the Criminal Justice System: An Overview. DNA
& Cell Biology, 25(3), 181-188. doi:10.1089/dna.2006.25.181
Santos,
F. (2014). Making sense of the story – the dialogues between the police and
forensic laboratories in the construction of DNA evidence. New Genetics
& Society,33(2), 181-203. doi:10.1080/14636778.2014.916186
Sherry Roberts is the author of this paper. A senior editor at MeldaResearch.Com in graduate paper writing service if you need a similar paper you can place your order from custom research paper writing service.
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