Do you remember the detective polices use DNA fingerprinting assisting information to find the murder in Crime Scene Investigation drama? DNA fingerprinting is one of the techniques of DNA profiling, to offer personal information of suspects. DNA profiling is a common forensic method to support criminal investigation, such as parentage testing and the DNA database. However, DNA profiling consists of the ethical- legal problems of the DNA database.

Positive effects of DNA profiling

DNA profiling can track an old case murder because of the long-persistent DNA information. In a crime scene, the polices collect biological samples, including blood, hair and figure printing, then the DNA information is obtained from DNA agarose methods and saved in files until match suspects. In the United Kingdom, the polices found the murder of the case 10 years ago, based on a little blood on the victim.

DNA profiling can find an unknown murder all over the world because of an improved international DNA database online. In early this year, the policemen capture a killer via an online DNA database. The genetic genealogists achieved genetic information from the collected blood on the scene and predict aspects of a person’s physical appearances through the database so that the detectives find the murder from predicted personal characters.

DNA profiling progress

Negative effects of DNA profiling

Fake DNA marks take a negative effect on a murder determination, these fake information leads to an obstacle of finding the suspects and let criminals go unpunished. In 1992, a criminal placed others’ DNA information on the scene and polices cannot charge him due to the differences in DNA evidence.

DNA databank of DNA profiling leaks personal information. DNA database collects DNA information of victims, witnesses and criminals, some hackers get these personal characters for either selling or post in the public. Therefore, personal health and confidential information of people leak to the public.

Summary

On one hand, DNA profiling can take benefits of finding a murder a long time ago and an unknown murder without physical characteristics. On the other hand, DNA profiling leaks innocent personal information and provides wrong evidence, which leads the criminals unpunished.

DNA profiling should take it seriously as scene evidence.

Posted in Molecular Biology & Biotechnology

Tagged DNA investigation, hacking