Sadly, "forensic science" is often not science at all. Much of it is barely an improvement on the techniques from the Victorian era. Altogether too much of it i

Sadly, "forensic science" is often not science at all. Much of it is barely an improvement on the techniques from the Victorian era. Altogether too much of it is an expert saying "these two samples look like a match" without a quantifiable metric. DNA evidence has made enormous leaps in the right direction, but even that requires a good chain of custody, good lab practices, and honest actors throughout the process.