A vacuum device created in Idaho has found an unexpected use in criminal cases. The M-Vac is a wet vacuum that's being used to extract DNA from rough and porous surfaces creating the ability to identify previously unknown suspects in cases all over the country. It's even been able to prove the innocence of convicted suspects who were wrongly imprisoned.
DNA testing has revolutionized the way that crimes are solved since its inception. Through its use within law enforcement, those accused of certain crimes can be identified and charged accordingly by matching DNA found at crime scenes to the suspect's DNA. Additionally, innocent people can be exonerated of crimes based on the fact that their DNA does not match what was found on the victim or at a crime scene. Specifically with regards to sexual crimes, the advances in DNA testing have led to many sexual predators being taken off the streets, and allowed others who have been accused but who are innocent a chance to walk free.