Category Archives: DNA profiling

#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

Posted in AAFS, ABFO, CSI, DNA mixtures, DNA profiling | Leave a comment

#Forensics: Cop DUI machines busted. 

…..and the police want to do their DNA rapid and inhouse. Yikes.  https://www.nytimes.com/2019/11/03/business/drunk-driving-breathalyzer.html

Posted in AAFS, Crime lab scandal, CSI, DNA profiling, Forensic Science Bias, Forensic science misconduct | Leave a comment

#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

Posted in AAFS, costs of wrongful convictions, criminal justice, DNA mixtures, DNA profiling, Medical errors, police crime labs | Leave a comment

#Forensics #DNA U.S. Takes Step to Require Asylum-Seekers’ DNA

Similar to building walls in Colorado? The Trump administration ignores US untested rape specimens and will collect DNA samples from asylum-seekers and add the information to a massive FBI database. Trump and the GOP continue to protray undoc immigrants as … Continue reading

Posted in AAFS, criminal justice reform, DNA profiling, forensic science misconduct, human rights violations, junk forensic science, police crime labs, US Crime labs, US homicide statistics analysis | Tagged , , , | Leave a comment

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

Posted in AAFS, costs of wrongful convictions, criminal justice reform, DNA mixtures, DNA profiling, Forensic Science, Forensic science misconduct, human identification | Tagged , , | Leave a comment

Forensics: Public familial DNA companies secretly aiding the FBI

Good thread on law enforcement’s expanding use of public corporations who have access to public DNA databases. Customers now worried. But its a business opportunity for one new company. We should add some convers on false positive or otherwise misleading … Continue reading

Posted in AAFS, CSI, DNA profiling, Forensic crime lab security issues, Forensic Science, human rights violations | Tagged , | Leave a comment

Forensics: let’s hear it for another biased and messed up Jack the Ripper case

This time its the Journal of Forensic Sciences that gets the gong for publishing a one-sided example of fumbled assumptions and disconnected exaggerations abt mitochondrial DNA. https://www.kxan.com/news/jack-the-ripper-identity-questioned-by-texas-state-research-professor/

Posted in Bad Forensic Science, criminal justice, DNA profiling, Forensic Science, Forensic Science Bias | Tagged | 1 Comment

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

Posted in AAFS, ABFO, Bitemarks, criminal justice reform, CSI, DNA mixtures, DNA profiling, forensic testimony, police crime labs, US Crime labs | Leave a comment

Forensics: Have you left your DNA trail at a crime scene recently?

Terrible questions will come to mind when the police call you up for an “interview.”  Read this in advance. https://www.sciencenews.org/article/long-handshake-spread-your-dna-objects-you-didnt-touch

Posted in DNA profiling, Forensic Science, Uncategorized | Leave a comment

Forensics: UK police love this “conclusive” bitemark opinion – DNA never gets mentioned

Five teeth out of 32 seems enough for everyone in this murder conviction in the UK. The dentist looks satisfied on the video. (the 3rd video in the article). Problems about expert error rates, etc., always go out the window … Continue reading

Posted in criminal justice reform, DNA profiling | Tagged , , , | Leave a comment