What is Forensic DNA testing?
Forensic DNA testing uses advanced testing techniques to help the legal system in various cases. Usually this type of testing is used in identity issues, such as placing a criminal on the crime scene or establishing paternity. Forensic DNA testing uses body fluids, skin or even hair samples to correctly determine the identity of the person tested by their genetic code. Although relatives may have similar genetic codes, there is little evidence that suggests that every two people could have the same code. By taking a reference sample, such as a swab in the suspect and comparing physical evidence found at the crime scene, forensic scientists can determine whether DNA from both samples is a consensus.
For forensic DNA testing, several different methods are used, depending on the type of samples and test needs. Forens' forensic scientists can look at the composition of y-chromosome, which is genetically transmitted from father to child. Other methods include comparing the specificityCut repeating formulas found in the DNA or the core examine in the cells examined.
Forensic DNA testing is a relatively new form of identity determination and new forms of testing are still emerging. DNA testing technology has only been available for the legal system since the late 80s after the 1985 was published in 1985 on field options. Although this technique is still in its infancy, it has proven its usefulness to the judicial system more precisely by determining physical evidence.
Forensic DNA testing also led to the redemption of many innocent people who were found guilty without sufficient physical evidence. In the United States, nearly 200 people were exempt from testing or repetition of DNA evidence through methods that are not available at the time of their experiment. Critics of the death penalty used these cases to re -debate on the death penalty and pointed to the probability that the stateAvil innocent people.
However, the use of Forensic DNA testing is hardly popular and critics raise a number of important objections. Test methods are difficult and fine and the results can be contaminated or destroyed in different ways. The alert also suggests that the evidence of DNA at the scene of the crime would be possible to engage a specific person.
Other critics are also worried about creating DNA databases such as those in the United States, the UK and New Zealand. While these databases are to record genetic evidence of criminals to associate them with possible future crimes, critics fear that it may endanger personal freedom and consultivacivystying to create illegal search. This criticism clearly shows that while Forensic DNA testing is an amazing tool of the legal system, it is far from infallible and requires further research and continued development of testing techniques.