It can determine whether you're set free or go to jail; DNA testing is becoming more and more popular in Wisconsin.
Evidence in over 500 cases in the state was sitting on crime lab shelves at the end of September, waiting for DNA tests, according to an Associated Press review.
We've heard a lot about DNA testing lately, like how it showed somebody else, not Steve Avery, raped a woman years ago. Crime lab officials say they're overwhelmed with requests from investigators to run tests, but it's not really a new problem.
"Back in the nineties, we had a great push for decreasing crime, and a lot more police officers were put on the street," says Marathon County Medical Examiner John Larson.
"That looks good in your community, but when you have more police officers making more arrests, then you're gathering more evidence, and you're sending more evidence for processing."
Larson also says there has to be more funding to get more scientists to do tests. There's actually a bill in the U.S. House of Representatives to do just that.