Dna Silver Bullet

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Qn 3. Is DNA evidence the silver bullet for all investigations? Introduction Deoxyribonucleic acid (DNA) is a molecule that encodes genetic instructions used in development and functioning of all known living organisms, making each species unique. Nearly every cell in a person’s body has same DNA. However, DNA varies from person to person with the exception of identical twins. The context of investigation we’re referring to is criminal and forensic investigations. Evidence refers to information or objects that may be admitted into court for judges and juries to consider when hearing a case. Evidence can come from varied sources, from genetic material or trace chemicals to dental history or fingerprints. Evidence can serve many roles in investigations,…show more content…
Although the task force investigating this case, collected DNA samples from Ridgway’s semen in 1987, the technology available back then didn’t allow them to connect him to the killings. The semen samples were compared with those found on his three victims murdered between 1982 and 1983. However, it is only until 2001, new DNA techniques spurred the re-examination of the DNA evidence that incriminated Ridgway. He was arrested and later pleaded guilty to more than 48 murders. He was being spared the death penalty and sentenced to 48 life sentences without…show more content…
For instance, in Germany, police working on a $6.5 million gold and jewelry heist found traces of DNA on a pair of discarded rubber gloves. Unfortunately for them, the DNA matched for two identical twins, Hassan and Abbas. They both had their DNA in the database, but because their DNA is 99.99% similar, it was impossible to tell whose DNA was on the glove. With the twins keeping their mouths shut and quietly high-fiving each other, the cops had to let them go. Therefore, in cases of twins, DNA evidence alone is

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