Category Archives: DNA mixtures

Forensics: Pro prosecution NYPD DNA Database Continues to Grow, Legal Aid Society Says

Despite the NYPD’s promise to reduce its DNA database, it has grown, the Legal Aid Society says. — Read on http://www.ny1.com/nyc/all-boroughs/news/2020/07/02/nypd-dna-database-continues-to-grow-legal-aid-society-says

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Forensics: San Jose man not guilty in death-penalty child killing case

Its all about DNA mixture software interpretation. Sound familiar? San Jose man not guilty in death-penalty child killing case — Read on http://www.mercurynews.com/2020/06/19/death-penalty-case-jury-finds-san-jose-man-not-guilty-in-2016-child-killing/amp/

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#Forensics: How DNA transfer is affected by “shedder” status. 

Any assumption that a DNA mixture can prove who was and wasn’t the perp gets clobbered in this study. Some people shed (i.e. leave) DNA more than others.  https://www.sciencedirect.com/science/article/abs/pii/S1872497319301164

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#Forensics: 16 minutes on DNA profiling, the good and the bad. From Dan Krane in Ohio

The opponents (i.e. prosecutors) to Dan’s methodology say that standards for minimum sample size and commercial profiling companies testing for inconsistencies and unreliabilities are not necessary. Of course they do. https://www.youtube.com/watch?v=tpPkmDeS3Dg

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Forensics: Decertified DNA mixture methods affected 1300 convictions in the US.

An in-house DNA mixture program that has been abandoned by the NYCME’s office gets a jaundiced review by an ex-DA judge. Unfortunately, the legal and political barriers to its effect on past convictions is left up to lawyers to consider. … Continue reading

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A New Solution to Countering Bad Science in Forensics | Lab Manager

Aussie study follows up on the unacceptable “ad hoc” nature of 30 different crime lab methods. They also demand for forensic science to become more open. Even DNA has befuddled courts into accepting “proprietary secrets” regarding crime lab software. — … Continue reading

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Forensics: More of the usual police rush to do their own DNA testing without Validating the “Black Box.”

Another short piece of “WTF” about law enforcement over-zealous main line adoption of their in-house “novel” methods. Precautions cast aside are: “Yet as recent coverage of the police rollout of these devices makes clear, the advent of Rapid DNA introduces … Continue reading

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Forensics: Another grassroots attempt to establish a Forensic Science Commission in Wisconsin. This paper written by PhD candidates.

http://www.sciencepolicyjournal.org/uploads/5/4/3/4/5434385/bratburd.pdf The LEO crime labs won’t like this intrusion on their domains. A 2005-2008 study suggesting similar went nowhere in the WI legislature.

Posted in costs of wrongful convictions, Crime lab scandal, criminal justice, criminal justice reform, CSI, DNA mixtures, Exoneration costs, Forensic Science Bias | Leave a comment

Forensics: Grits for Breakfast: Most crime labs accused innocent person in DNA mixture study

Grits for Breakfast: Most crime labs accused innocent person in DNA mixture study — Read on gritsforbreakfast.blogspot.com/2018/09/most-crime-labs-accused-innocent-person.html The dark side of the NIST DNA mis-identification report covered in my last blog. Subterfuge and disclaimers to quash use in court by … Continue reading

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Forensics: Runaway use of touch DNA by Prosecutors ignores it’s limitations and cautions.

Framed By Your Own Cells: How DNA Evidence Imprisons The Innocent Marina Medvin Tiny amounts of touch-transferred DNA have placed people at locations they had never visited and implicated people for crimes they did not commit. | Getty Images   … Continue reading

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