Cotton Swabs are the Prime Suspect In 8-Year Phantom Chase
matt4077 writes "For eight years, several hundred police officers across multiple European countries have been chasing a phantom woman whose DNA had been found in almost 20 crimes (including two murders) across central Europe. It now turns out that contaminated cotton swabs might be responsible for this highly unusual investigation. After being puzzled by the apparent randomness of the crimes, investigators noticed that all cotton swabs had been sourced from the same company. They also noted that the DNA was never found in crimes in Bavaria, a German state located at the center of the crimes' locations. It turns out that Bavaria buys its swabs from a different supplier."
I'm glad that they didn't find the woman who's DNA it is. After all, she would have been severely punished for something that she had absolutely no idea about.
I'm amazed that there was the presence of mind to check the suppliers!
Although, this would be a great "thin-blue-line" skit.
But ... but ... CSI, computers and experts are always right! You mean they actually have to do investigations instead of blind trust?
I wonder how much hard evidence they discarded because they "knew" it was this same woman?
You're probably right, but I think the OP's point stands, nonetheless. A non-citizen, possibly lacking the right language skills, and maybe not the most sophisticated person in the world, might get railroaded. In the US, at least, juries tend to give overwhelming weight to scientific or expert testimony of any kind, regardless of how certain or flawed the science is. Even if not, that woman's life would still go to hell the minute the cops found her.
Police and the scientific method are like politicians and economic theory: They talk about the principles, they often appear to use and apply the academic insights, but they tend to throw anything out that doesn't match their pre-existing bias, without a second thought.
I'm not saying that all cops just think "The cuffs are on her: Therefore, she must be guilty." But police work tends to reward and glamorize a dogged pursuit of a conclusion based on a hunch. If a scientific researcher:
* becomes emotionally involved in the outcome of his or her work, developing a substantial personal need to see it succeed, AND
* eschews open, independent peer review and only seeks collaborative opinions from people likely to sympathize with the researcher, generally,
it's a recipe for disaster--cold-fusion, antigravity, perpetual motion machines, etc. Academia has a LOT of braking mechanisms to prevent bad science from getting to the publishing stage, and more mechanisms designed to suppress whatever happens to slip through. Police departments have far fewer checks.
Historically, bad police work hasn't carried much of a risk to the cops who did it--you could railroad a poor, ignorant, minority defendant on a sensational charge without much worry that he would somehow exonerate himself, later. That's starting to change (Project Innocence being the big example), but old attitudes and methods are deeply ingrained in police culture, and won't change quickly.
Anyway, the point is, that these cops devoted hundreds of police and several years of investigations to this case--millions of dollars in costs. But since police labs don't try to have independent outsiders replicate and repeat their experiments, nobody caught this before it turned into a circus.