Accuracy of DNA “Matches” to Definitively Identify Suspects Questioned | Death Penalty Information Center
In 2001, Arizona state crime lab analyst Kathryn Troyer was running tests on the state’s database when she came across two felons with remarkably similar genetic profiles. They matched at 9 of the 13 locations on chromosomes, or loci, commonly used to distinguish people. While the FBI estimated the odds of finding unrelated people sharing those genetic markers to be 1 in 113 billion, Troyer found the men to be unrelated and of different races–one was black and the other white.
It’s convenient just now to believe that the FBI is our friend. But it isn’t accurate.
The FBI is tasked with upholding our civil rights, and they’re still not doing it.
Quietly increasing the number of loci (chromosomes) they tracked in their database from 13 to 20 in 2017 (below) wasn’t the way to address that so many individuals in multiple states, per the linked article above, had matched exactly at as many as nine loci, which likely led to hundreds if not thousands of wrongful convictions.
Please share this information widely, because the FBI and the Department of Justice aren’t going to, and the mainstream media is just as reluctant to disclose its forensics foulups as feds are.
Twenty CODIS Core Loci
In early 2015, the FBI announced that the validation project for additional CODIS Core Loci had been completed and that an additional seven loci would be added to the CODIS Core effective January 1, 2017.3 The additional seven loci—D1S1656, D2S441, D2S1338, D10S1248, D12S391, D19S433 and D22S1045—along with the original 13 loci, will comprise the new CODIS Core Loci. Below is a listing of the 20 CODIS Core Loci.
- CSF1PO
- D3S1358
- D5S818
- D7S820
- D8S1179
- D13S317
- D16S539
- D18S51
- D21S11
- FGA
- TH01
- TPOX
- vWA
- D1S1656 (effective January 1, 2017)
- D2S441 (effective January 1, 2017)
- D2S1338 (effective January 1, 2017)
- D10S1248 (effective January 1, 2017)
- D12S391 (effective January 1, 2017)
- D19S433 (effective January 1, 2017)
- D22S1045 (effective January 1, 2017)
