In the 1980s, DNA analysis was discovered and became a great advanced crime-solving tool for investigators. DNA analysis was created to be used in crime cases and can help exonerate suspects and identify criminals. Additionally, television programs such as "CSI" have helped increase public awareness of DNA analysis which can be a great advancement for crime investigations. To achieve greater identification and comparison, CSI will conduct analysis of body fluids including DNA analysis which includes blood stains, semen, hair and saliva. Say no to plagiarism. Get a tailor-made essay on "Why Violent Video Games Shouldn't Be Banned"? Get an Original Essay Overall, DNA technology is progressively critical to ensuring authority and fairness in the criminal justice system. Most of the cells that make up the human body are diploid cells that have the exact same DNA, with the exception of haploid gametes (egg and sperm) and red blood cells. The biological material used in DNA profiling includes blood, semen, saliva, urine, feces, hair, teeth, bones, tissues and cells. While some are more useful than others, areas using biological evidence in DNA and genetic analysis vary and include blood typing, gender determination, DNA profiling, and forensic DNA phenotyping. DNA testing technology had become a powerful criminal justice tool. It is very useful for identifying suspects in a criminal investigation. An example of a solved crime provided by DNA evidence is in 2001, when serial killer Gary Leon Ridgway, also known as the "Green River Killer", was born on February 18. , 1949, worked for 30 years painting trucks and was married 3 times. Ridgway's murders began in 1982. He took home many young delinquents and prostitutes, strangled and strangled them to death, then left them in the woods. It eludes the law until 2001, when even King County Sheriff Dave Reichert, the first The officer assigned to the case in 1982, had reconsidered and decided to meet to re-examine the evidence using newly developed DNA testing technology . Despite a large Law Administration task force and a $15 million investigation, the DNA evidence provided a major breakthrough in the series of crimes that remained unsolved for many years. In 2013, Ridgway claimed to have killed 75-80 women. But even DNA evidence can be unreliable due to the potential aggression of the individual being tested. The person's DNA reveals so much information that some of it had become too sensitive to be carefully guarded. Another disadvantage of DNA evidence is that it can be fallible. Because we leave traces of our DNA everywhere, such as dead skin cells, scattered cracks or strands of hair. It can be difficult for investigators to distinguish between DNA that belongs to the criminal and DNA found randomly at the crime scene. Sometimes DNA analysis can lead to the practice of eugenics. It can allow only desirable genetic characteristics to be passed on to a generation of children. But this type of action can also be ethical because it can be considered an interference with nature and can be against some religious beliefs. Please note: this is just an example. Get a custom paper from our expert writers now. Get a Custom Essay DNA analysis has now become an important step in crime scene investigation. DNA analysts will process all evidence found at the crime scene after the CSI makes their way to the scene,.