In the 1980s, DNA analysis was discovered and became an advanced crime-solving tool for investigators. DNA analysis was created for use in criminal cases and can help eliminate suspects and identify criminals. Additionally, television shows like "CSI" have helped raise public awareness of DNA analysis, which can be a big advancement in investigating crimes. To get more identification and comparison, the CSI will perform the analysis of body fluids, also including DNA analysis which are blood, semen, hair and saliva stains. Say no to plagiarism. Get a tailor-made essay on “Why Violent Video Games Should Not Be Banned”? Get an original essay All in all, DNA technology is increasingly essential 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 exactly the same DNA, with the exception of haploid gametes (eggs and sperm) and red blood cells. Biological material used in DNA profiling includes blood, semen, saliva, urine, feces, hair, teeth, bones, tissues and cells. Although some are more useful than others, the areas in which biological evidence is used in DNA analysis and genetics vary, including blood type, sex determination, DNA profiling and the forensic DNA phenotype. DNA testing technology has become a powerful criminal justice tool. It is very useful in identifying suspects in a criminal investigation. An example of a crime solved using DNA evidence occurred in 2001, when serial killer Gary Leon Ridgway, also known as the "Green River Killer," was born on February 18. , 1949, he worked as a truck painter for 30 years and was married 3 times. The Ridgway murders began in 1982. He took many young delinquents and prostitutes home, strangled and suffocated them to death, then left them in the woods. He escaped the law until 2001, when King County Sheriff Dave Reichert, also the first officer assigned to the case in 1982, reconsidered his decision and decided to meet to reexamine the evidence at using new DNA testing technology. Despite a large law enforcement task force and a $15 million investigation, the DNA evidence was a major breakthrough in the series of unsolved crimes for many years. In 2013, Ridgway claimed to have murdered 75 to 80 women. But DNA evidence can also be unreliable when it comes to the potential assault of the person being analyzed. The person's DNA reveals so much information that some of it became too sensitive and had to be carefully guarded. Another disadvantage of DNA evidence is that it can be fallible. Since we leave traces of our DNA everywhere like dead skin cells, stray cracks or strands of hair. It can be difficult for investigators to differentiate between DNA that belongs to the criminal and that which happened to be found at the crime scene. Sometimes DNA analysis can lead to the practice of eugenics. It can ensure that only desirable genetic characteristics are passed on to a generation of children. But this type of action can also be ethical because it can be considered interference with nature and may go against certain religious beliefs. Keep in mind: this is just a sample. Get an article now..