When Bad DNA Tests Lead to False Convictions
"If you’ve ever watched a prime-time crime drama like CSI, you know that DNA evidence is often the linchpin that makes a case. Match a suspect’s DNA to DNA found at the scene of a crime and it’s certain they’re the culprit. The thing is, it’s not always that simple. Most people think of DNA testing as a monolithic, infallible technique. But there are many different kinds of tests—and many different ways of interpreting them. Sometimes, somewhere between the process of collecting evidence at the scene and processing it in the lab, something goes awry."

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