From "Law and Order" to "CSI," not to mention real life, investigators have used fingerprints as the gold standard for linking criminals to a crime. But if a perpetrator leaves prints from different fingers in two different crime scenes, these scenes are very difficult to link, and the trace can go cold.
Or we’re going to find out fingerprint analysis was junk science, just like hair analysis.
We’ll still use it to convict people though.
There has been no science to back up fingerprints being unique enough to determine identity by. I’m not sure “going to find out” is quite the same as “has never been proven to be true.”