DNA evidence refers to biological material that contains the genetic information of an individual. This evidence can be collected from various sources, such as blood, hair, skin cells, or bodily fluids. Scientists analyze this material to identify unique patterns in the DNA, which can link a suspect to a crime scene or confirm a person's identity. In forensic science, DNA evidence plays a crucial role in solving crimes and exonerating innocent individuals. The process involves comparing the DNA profiles obtained from evidence with those of suspects or databases. This method has revolutionized criminal investigations and has become a standard practice in law enforcement.