Grits for Breakfast 12/11/2019
It's perhaps a testament to the reduction in size of and competition among MSM outlets that nobody has yet covered the problems with DNA-mixture forensics raised by federal District Judge Janet Neff of Michigan's Western District* (discussed by Grits here and on the latest Reasonably Suspicious podcast). That must change; some full-time reporter(s) must step up. These issues deserve high-level coverage and national context that this humble, regional blog cannot provide.
Once you begin to pay attention, these cases are cropping up everywhere. In San Diego, we have the case of Flamencio Dominguez. In 2011, he was convicted of a 2008 murder based on DNA mixture evidence and sentenced to 50 years, reported the San Diego Union Tribune. Months before the trial, the crime lab realized the mathematics behind their old DNA-mixture analyses used an invalid baseline. They decided to abandon their old approach and switch to "probabilistic genotyping" instead.
(Similarly, in Texas in 2015, crime labs discovered every lab in the state was using erroneous math in DNA-mixture analyses in ways that risked falsely accusing innocent people, see coverage here and here. In Travis County alone, 11 cases were found where suspect matches changed to "inconclusive." Our crime labs, too, were advised to switch to probabilistic genotyping.)
When the baseline issue was corrected in Mr. Dominguez's case, the new algorithm went from accusing him to "inconclusive." But prosecutors did not tell Mr. Dominguez's counsel about the change. The defendant was convicted based on what now is admittedly erroneous DNA math, and his lawyer wasn't aware of the flawed DNA-mixture protocols until six years later.
More:
https://gritsforbreakfast.blogspot.com/2019/12/the-icebergs-tip-ca-man-walks-free-bc.html
