The Pros And Cons Of DNA Fingerprinting

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Deoxyribonucleic acid (DNA) is an acclaimed extraordinary discovery that has contributed great benefits in several fields throughout the world. DNA evidence is accounted for in the majority of cases presented in the criminal justice system. It is known as our very own unique genetic fingerprint; “a chromosome molecule which carries genetic coding unique to each person with the only exception of identical twins (that is why it is also called 'DNA fingerprinting ')” (Duhaime, n.d.). DNA is found in the nuclei of cells of nearly all living things.
In 1953, after carefully studying this molecule and scientific reports generated from several predecessors, scientists Jason Watson and Frances Crick divulged their determination that the structure …show more content…

However, before linking any kind of unique characteristics to human DNA, Jeffreys stumbled upon one of his first findings while experimenting with the genomes of rabbits when he discovered that eukaryotic DNA contained introns. Introns are non-coding sequences found throughout DNA. While maintaining a high interest in the study of introns, “Jeffreys sought to combine his recently acquired molecular biology experience with his interests in human genetics. ‘The first question we asked was, If you can see DNA restriction fragments, can you see variation between people in those fragments?’” (Zagorski, …show more content…

The theory of DNA, simply stated, is that an individual’s genetic information is unique, with the exception of identical twins, and that it “definitively links biological evidence such as blood, semen, hair and tissue to a single individual” (Saferstein, 2013). This theory has been generally accepted since the mid-80s throughout the scientific community and hence, pursuant to the 1923 Frye ruling, also deemed admissible evidence throughout our justice system. The first case where DNA evidence was used to convict a man took place in Florida in 1988: Andrews v. State, 533 So. 2d 841 (Fla. Dist. Ct. App. 1988). Andrews broke into a Florida woman 's home and sexually assaulted the woman at knife-point. “DNA samples of semen retrieved from the crime scene matched blood drawn from Andrews. At that time, no state had a DNA databank. However, after witnessing the power of DNA evidence, state courts and state legislatures would soon grapple with the issue of whether DNA evidence should be admitted at trial as identity evidence and whether establishing state DNA databanks would be feasible and of value to law enforcement. A review of current law reveals that almost every state has embraced and institutionalized the utilization of DNA fingerprinting for crime fighting purposes” (Hibbert,

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