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Posted: August 19th, 2022
DNA Strengths & Weaknesses
DNA is a important device in legislation enforcement and subsequently, Homeland Safety. Talk about DNA and why it is vital within the identification of criminals and potential terrorists. What are DNA’s strengths and what are its weaknesses and challenges?
DNA (Deoxyribonucleic acid) is a protracted molecule situated within the nucleus of each cell of residing organisms. DNA encodes details about that people traits together with eye color, gender, pores and skin color, hair color and many others. It’s distinctive to each particular person in that every individual will be recognized by their DNA profile. The DNA of an individual is inherited from their dad and mom, with every father or mother contributing 50% of the profile that determines the traits. Amongst human beings, 99.9% of DNA is comparable. Nevertheless, the remaining zero.1% is exclusive to every individual and solely this portion is used to uniquely establish an individual (Behrouzfard, 2006).
Within the felony justice system, using DNA proof has been significantly credited for the exoneration and incrimination of criminals. Since DNA is exclusive, the DNA collected at a criminal offense scene will be in comparison with the suspect’s DNA profile to conclusively decide whether or not or not the suspect was concerned within the crime. Due to this fact, two samples are required to hyperlink a suspect to a criminal offense. DNA may also be used to establish a corpse discovered at a criminal offense scene particularly a scenario the place the corpse was disfigured. Furthermore, for a repeat offender similar to a serial killer, DNA profiles collected at completely different crime scenes can be utilized to hyperlink the crimes to the perpetrator. DNA profiles will be simply quantified right into a sequence of numbers which might then be saved electronically. Which means that a big DNA database will be created to ease within the linking of a DNA profile to a person. DNA, not like different figuring out options similar to fingerprints, can’t be adversely affected by damage.
DNA, nonetheless, has its shortcomings. As it’s a take a look at being carried out by human beings, it’s vulnerable to laboratory errors. Such errors have led to the wrongful conviction of suspect because of the laboratory’s malpractice. Furthermore, DNA proof is never left at crime scenes. The usage of DNA proof solely accounts for lower than 10% of all murder instances (Behrouzfard, 2006).
References
Behrouzfard, N. (2006). Strengths, Limitations, and Controversies of DNA Proof. New England: Southern New England Faculty of Legislation.
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