Here is some more information regarding the Tara Grinstead case and the Up and Vanished podcast: Up and Vanished website Wikipedia Article with reference to ‘meshed DNA’
This blog was previously hosted at forensicdnaconsulting.wordpress.com. That site remains and all previous posts have been migrated to MBA DNA Consulting, LLC’s website, mbadnaconsulting.com. Some of the comments to previous posts did not migrate over. Going forward, new posts will only appear at mbadnaconsulting.com.
Curiously enough, just as the O.J. Simpson trial has come back into the public’s consciousness through FX’s ‘The People v. O.J. Simpson’ TV series, now we have ‘bombshell’ news. Reportedly, a construction worker found a knife buried on the Rockingham property as it was being demolished by the new owners. The construction worker gave […]
Below is a guest blog by Mr. Dante Webb. I recently became acquainted with this up-and-coming forensic scientist and thought my readers might enjoy his take on the field as a ‘newbie’. A Newbie’s Perspective: The Current State of Forensics Ever since I was 12 years old it was […]
http://www.washingtonpost.com/local/crime/fbi-notifies-crime-labs-of-errors-used-in-dna-match-calculations-since-1999/2015/05/29/f04234fc-0591-11e5-8bda-c7b4e9a8f7ac_story.html It will be interesting to see how this shakes out. “In a bulletin sent to crime labs, the FBI said the problem stemmed from “clerical mistakes in transcriptions of the genotypes and to limitations of the old technology and software.” I am not sure that the public will ever have access to this bulletin, […]
This is an interesting historical DNA evidence investigation that was brought to light this week on the advent of a book release. Here are some articles along with some thoughts I shared on Al Jazeera America News. http://www.theguardian.com/uk-news/2014/sep/08/jack-the-ripper-polish-aaron-kosminski-dna DNA analysis of fourth victim’s shawl reveals Jack the Ripper was a Polish hairdresser gone mad […]
Columbus Police To Review 3,000 DNA Test Results If the article in the link above is accurate, the problem is that reports were issued in which associations were made between DNA on items of evidence and DNA of individuals with no statistic to indicate the significance of that association. This is like receiving a voicemail […]
http://sanfrancisco.cbslocal.com/2013/06/28/south-bay-paramedics-likely-brought-innocent-mans-dna-to-crime-scene/ This article and video clip describe a dramatic and disturbing scenario of DNA transfer and its effect on interpretation of DNA results.
After my initial post on the case back in October, I was alerted to additional DNA notes and reports available online: http://www.cfnews13.com/content/dam/news/static/cfnews13/documents/2012/09/GZ-FLDE-bio-evidence-2-0919.pdf Below is a page of the evidence screening notes for the dark gray hooded sweatshirt belonging to Trayvon Martin. The analyst describes a sealed brown paper bag containing an unsealed red “biohazardous” bag […]