One of the main pieces of evidence prosecutors often use in Georgia is DNA. It has long been a popular way to prove a case since it is highly accurate. However, DNA is not foolproof. There are serious issues with it that could lead to false accusations and convictions. If your case hinges on DNA evidence, you need to understand the issues with its reliability.
According to the Human Rights Defense Center, you leave DNA everywhere you go and on anything you touch. Your DNA can stay around for a long time in places you have been or on items you have touched. If a crime occurs in a location where you recently visited, it could implicate you in a crime. There is even a chance that if, for example, you touch a knife and it is later used to commit a murder, that your DNA will show up and you become a murder suspect.
Part of the reason why DNA transfer is such an issue is because of the advances made in technology. They can pick up DNA from the tiniest of specimens these days. That may be great when catching the right criminal, but it is trouble for all the innocent people. It increases the chances of false DNA matches and wrongful convictions.
Furthermore, new knowledge about DNA shows us that DNA is transferrable not only by the person to whom it belongs but also by others. For example, you touch a doorknob and then someone else touches that doorknob. It is possible for your DNA to transfer to that other person. When a technician gathers DNA from a crime scene, he or she cannot know if you left the DNA or if someone else brought it to the scene.
Due to these issues, DNA is not the magic evidence everyone thinks. It is essential for juries to know about the possibilities that DNA evidence could be wrong. This information is for education and is not legal advice.