Persuasive Essay On Dna Testing

For the pasts few decades, there has been a great development of the scientific area of DNA, deoxyribonucleic acid, helping on scientific research and most importantly as a tool for solving crimes. Before the usage of DNA, people only had shreds of evidence on the crime which could be detected by the naked eye. However, with the development of DNA detection technology, the police can identify or get some indication about the malefactor by collecting pieces of evidence that were impotent before; for example, hair, fingerprints and even blood (Travis, 1998). However, DNA testing consumes a lot of time and money. But even with this downfall, there is one unvarying fact: DNA testing is highly efficient in solving and preventing crimes. The use of DNA technology has increased the probability of finding the culprit and also prevents further crimes. Compared to the past, with DNA technology, today “more than twice as many suspects are[were] identified, twice as many suspects are[were] arrested and more than twice as many cases are accepted for prosecution” (Ritter, 2008). This is because of higher availability of DNA sources and uniqueness of DNA. Between two people, 99.9
When collecting the evidence for samples of DNA is extremely laborious and also time-consuming. The likelihood of finding blood stain somewhere in the immense area is infinitesimally small (Laird & Blackmore, 2009). By spending too much time on small evidence will not only take up the time but also lead to failure of finding the suspect. In addition, DNA matching could only happen when there is a matching DNA in the database; however, for the data of 2010, there is no library contacting all DNA of people (National Forensics Science Technology Center, n.d). In addition, when samples have a very low amount of DNA, it could have been disturbed by environmental conditions or the undesirable way of preservation (Figarelli,