Every law enforcement department throughout the country has unsolved cases that could be solved through recent advancements in DNA technology. Today, investigators who understand which evidence may yield a DNA profile can identify a suspect in ways previously seen only on television. Evidence invisible to the naked eye can be the key to solving a residential burglary, sexual assault, or murder. The saliva on the stamp of a stalker’s threatening letter, the perspiration on a rapist’s mask, or the skin cells shed on the ligature of a strangled child may hold the key to solving a crime.
