DNA testing is almost certainly the forensic evidence most trusted by jurors and most feared by defense attorneys. Unlike the majority of forensic tests and “science” presented in criminal trials, DNA is real science and is spot-on accurate when done properly. But DNA testing is no simple thing, and the results will only be as good as the forensic scientist doing the test.
So I found it both amusing and bit scary when I read about forensic scientist Dr. Melba Ketchum’s claim to have sequenced the Sasquatch (Bigfoot) genome. I thought her claim to be a real expert witness was a bit dubious, but she was named as a DNA expert in a published sexual assault case.
A simple google search reveals that an army of debunkers have examined her results and technique and come to the simple conclusion that she really doesn’t know what she is doing. For example, there was a long a sophisticated discussion about the problems in her technique on arstechnica. Sadly, Dr. Ketchum’s Bigfoot work has probably received far more scrutiny than any of her more mundane work testifying as a DNA expert . . .