Ever since DNA evidence was admissible in the court of law, crime solving had gone a very long way. When DNA was allowed to be used as evidence, many convictions were overturned and thrown out of the window. Some of the common cases were assault, rape, robbery, and murder. Overall, genetic technology has revolutionized the way we can solve crimes.
DNA analysis can great a group of suspects and narrow down the group of suspects. For the most part, suspects at the scene of the crime leave all sorts of DNA in the form of blood, sweat, semen, vaginal fluid, urine, skin samples, saliva, hair samples, finger prints, and so forth. Before DNA evidence was admissible in court, many people were wrongfully imprisoned. There were also people that were wrongfully put to death.
Today, there are numerous ways that DNA analysis can be used to solve various crimes. Semen and vaginal fluid are forms of DNA that can be used as evidence in rape, sexual assault, and rape-related murders.
In regards to a rape case, there is DNA evidence in the form of blood, saliva, semen, vaginal fluid, and pubic hairs. Through this evidence, law enforcement can round up the suspects and take DNA samples. The DNA can be matched with the pubic hair, semen, blood, saliva, and other traces of DNA discovered at the scene of the rape. Not only does it narrow down the list of potential suspects, it brings authorities one step closer to the person or persons responsible for the crime.
In respect to solving sex-related crimes, DNA analysis has become incredibly useful. During sex-related crimes, there will always be traces of DNA left at the scene of the crime most of the time.
In homicides, there are traces of DNA in the form of blood, hair, skin, and urine. Unless bleach or alcohol is used in cleaning a weapon used for assault and/or murder, there will still be traces of DNA left. The DNA can be matched with the list of suspects. Also, there will be finger prints left on the weapons. Another form of DNA would be sweat. Yes, sweat can be used as a form of DNA evidence.
Overall, DNA tells a lot of things. It would be through DNA evidence that would bring the answers to the questions we seek. DNA possesses all sorts of interesting information such as blood type, gender, hormone, physical ailment, and other sorts of information. Even the smallest bit of DNA can give us many answers.
However, DNA analysis to solve crimes is not limited to animal DNA. There are instances in which plant DNA has been used. Like animal DNA, plant DNA is very different. Through plant DNA, authorities can find out what type of tree or plant it is derived from. From there, they can pinpoint where the plants and trees are. Authorities will then learn where the crime had possibly taken place.
It would be through DNA analysis in which we find the keys to solving the various crimes. Without DNA analysis, there would still be many people wrongfully imprisoned and many cases that remain open.
