Thursday, November 20, 2025

Back In Action: Catch Up: Edward T. Blake: The Death Penalty Information Center reports that this pioneer of using DNA to prove innocence has died at at 80, noting that: "Dr. Blake’s work coin­cid­ed with a peri­od in which the crim­i­nal legal sys­tem began to con­front the use of unre­li­able foren­sic evi­dence in con­vic­tions. The PCR test­ing used by Dr. Blake was among the few foren­sic tools that could defin­i­tive­ly exclude peo­ple who were accused of being involved in crimes. In 1988, he helped con­tribute to the first DNA exon­er­a­tion, prov­ing that Gary Dotson, who had served 8 years in prison for a sex­u­al assault, could not have been the source of the bio­log­i­cal evi­dence from the crime he was accused of com­mit­ting. Just five years lat­er, in 1993, Dr. Blake’s work helped free Kirk Bloodsworth from death row in Maryland — the first death-sen­tenced per­son to be exon­er­at­ed through DNA evidence. “Ed was a guy who saw things in black and white,” said Maurice Possley, a for­mer reporter for The Chicago Tribune who inves­ti­gat­ed wrong­ful con­vic­tions. “Like, ‘You can come up with all kinds of dif­fer­ent the­o­ries about why some­thing doesn’t exon­er­ate this per­son. But what I’m telling you is this person’s bio­log­i­cal mate­ri­als is not present.’ And that’s pret­ty defin­i­tive.”


QUOTE OF THE DAY: "Peter Neufeld, co-founder of the Innocence Project, com­pared Dr. Blake to Ted Williams, the base­ball play­er regard­ed as among the great­est of all time. “In foren­sic sci­ence, there are a bunch of .300 hit­ters, and there’s Ted Williams. Ed Blake is Ted Williams.”

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PASSAGE OF THE DAY: "The lega­cy of ques­tion­able foren­sic sci­ence con­tin­ues to be seen in cas­es today.  Robert Roberson, a Texas death-sen­tenced pris­on­er, was con­vict­ed on the basis of “Shaken Baby Syndrome” (SBS), a diag­no­sis that has since been refut­ed by most med­ical experts.  In 2024, the Texas Court of Criminal Appeals over­turned an SBS con­vic­tion in anoth­er case and recent­ly grant­ed Mr. Roberson a last minute stay of exe­cu­tion under Texas’ junk sci­ence law, which allows for recon­sid­er­a­tion of con­vic­tions when the sci­ence relied upon has been dis­cred­it­ed.  Medical experts who reviewed the evi­dence in Mr. Roberson’s case have con­clud­ed that his 2‑year-old daugh­ter Nikki actu­al­ly died from acci­den­tal and nat­ur­al caus­es, not abuse. Cases like Mr. Roberson’s under­score the evolv­ing under­stand­ing of foren­sic sci­ence in crim­i­nal cas­es. Dr. Blake’s career demon­strat­ed what this rig­or looks like: his work estab­lished that foren­sic sci­ence can be a vital tool in ensur­ing accu­ra­cy and fair­ness in criminal cases."

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POST: "Edward T. Blake, Pioneer of Using DNA to Prove Innocence, Dies at 80,"  published by The Death Penalty Information Center, on October 15, 2025.

GIST: INNOCENCE: "Edward T. Blake, a foren­sic sci­en­tist who helped pio­neer the use of DNA analy­sis in crim­i­nal cas­es and whose work helped exon­er­ate more than 50 peo­ple, includ­ing those on death row, died in August 2025 at age 80 from pan­cre­at­ic can­cer.

 Dr. Blake was the first foren­sic sci­en­tist to use poly­merase chain reac­tion test­ing, or PCR, on crime-scene DNA.

 The tech­nique allowed Dr. Blake to extract usable genet­ic infor­ma­tion from evi­dence sam­ples that could not pre­vi­ous­ly be test­ed because of old age, small quan­ti­ty, or severe degradation.

Dr. Blake’s work coin­cid­ed with a peri­od in which the crim­i­nal legal sys­tem began to con­front the use of unre­li­able foren­sic evi­dence in con­vic­tions. 

The PCR test­ing used by Dr. Blake was among the few foren­sic tools that could defin­i­tive­ly exclude peo­ple who were accused of being involved in crimes. 

In 1988, he helped con­tribute to the first DNA exon­er­a­tion, prov­ing that Gary Dotson, who had served 8 years in prison for a sex­u­al assault, could not have been the source of the bio­log­i­cal evi­dence from the crime he was accused of com­mit­ting. 

Just five years lat­er, in 1993, Dr. Blake’s work helped free Kirk Bloodsworth from death row in Maryland — the first death-sen­tenced per­son to be exon­er­at­ed through DNA evidence.

“Ed was a guy who saw things in black and white,” said Maurice Possley, a for­mer reporter for The Chicago Tribune who inves­ti­gat­ed wrong­ful con­vic­tions.

 “Like, ‘You can come up with all kinds of dif­fer­ent the­o­ries about why some­thing doesn’t exon­er­ate this per­son. But what I’m telling you is this person’s bio­log­i­cal mate­ri­als is not present.’ And that’s pret­ty defin­i­tive.”

Peter Neufeld, co-founder of the Innocence Project, com­pared Dr. Blake to Ted Williams, the base­ball play­er regard­ed as among the great­est of all time. “In foren­sic sci­ence, there are a bunch of .300 hit­ters, and there’s Ted Williams. Ed Blake is Ted Williams.”

As an under­grad­u­ate at the University of California, Berkeley, in the 1960s, Dr. Blake switched his stud­ies from physics to foren­sics.

 “There were just so many things going on in soci­ety, and our cul­ture was under­go­ing a lot of changes,” he told the Associated Press in 1995. “I want­ed to be involved in a field that was more prac­ti­cal­ly ori­ent­ed and soci­etal­ly ori­ent­ed, and so some­how I just grav­i­tat­ed to the foren­sic sci­ence pro­gram.” 

He would go on to receive his bachelor’s degree in 1968 and a doc­tor­ate in crim­i­nol­o­gy in 1976, also from Berkeley.

In the mid-1980s, Dr. Blake’s con­sult­ing com­pa­ny, Forensic Science Associates, occu­pied the same build­ing as a biotech firm that had devel­oped PCR test­ing. 

After con­sult­ing with mol­e­c­u­lar geneti­cist Henry Erlich of Cetus Corporation, Dr. Blake began to use PCR test­ing on degrad­ed tis­sue sam­ples, which proved to be a trans­for­ma­tive tech­nique for foren­sic analy­sis. 

Alternative meth­ods of DNA analy­sis exist­ed at the time; how­ev­er, they required large amounts of bio­log­i­cal mate­ri­als to be able to make an iden­ti­fi­ca­tion. 

Often times, crime scene evi­dence was not sub­stan­tial enough or too degrad­ed to be test­ed by these meth­ods.

 Dr. Blake was known by his peers for hav­ing an unwa­ver­ing insis­tence on sci­en­tif­ic accu­ra­cy.

 “Those who know Blake believe that a stick of dyna­mite siz­zling under his nose would not cause him to alter a dot or com­ma in a lab­o­ra­to­ry report,” wrote Jim Dwyer for Newsday in 1994.

Dr. Blake’s work took on height­ened sig­nif­i­cance as aware­ness grew about how unre­li­able foren­sic evi­dence had con­tributed to wrong­ful con­vic­tions. 

His DNA analy­sis pro­vid­ed a defin­i­tive means of excul­pat­ing sus­pects in cas­es where tra­di­tion­al foren­sic meth­ods had offered only subjective assessments. 

The lega­cy of ques­tion­able foren­sic sci­ence con­tin­ues to be seen in cas­es today. 

Robert Roberson, a Texas death-sen­tenced pris­on­er, was con­vict­ed on the basis of “Shaken Baby Syndrome” (SBS), a diag­no­sis that has since been refut­ed by most med­ical experts. 

In 2024, the Texas Court of Criminal Appeals over­turned an SBS con­vic­tion in anoth­er case and recent­ly grant­ed Mr. Roberson a last minute stay of exe­cu­tion under Texas’ junk sci­ence law, which allows for recon­sid­er­a­tion of con­vic­tions when the sci­ence relied upon has been dis­cred­it­ed.

 Medical experts who reviewed the evi­dence in Mr. Roberson’s case have con­clud­ed that his 2‑year-old daugh­ter Nikki actu­al­ly died from acci­den­tal and nat­ur­al caus­es, not abuse.

Cases like Mr. Roberson’s under­score the evolv­ing under­stand­ing of foren­sic sci­ence in crim­i­nal cas­es.


 Dr. Blake’s career demon­strat­ed what this rig­or looks like: his work estab­lished that foren­sic sci­ence can be a vital tool in ensur­ing accu­ra­cy and fair­ness in criminal cases."


The entire post ca be read at: 

https://deathpenaltyinfo.org/edward-t-blake-pioneer-of-using-dna-to-prove-innocence-dies-at-80

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PUBLISHER'S NOTE: Dr. Blake's innovated development of DA testing played a hue role in two of the most iconic exonerations in Canadian history: The exonerations of Guy Paul Morin(Ontario) and David Milgaard.  The role played by Dr. Blake's DNA testing in these case is described in an excerpt from  a Government of Canada publication  called Forensic DA analysis:  Technology and Application,  at the link below,  by Thomas Curran, Science and Technology Division

EXCERPT: "The value of forensic-DNA profiling in exonerating innocent persons has recently been much in the news in Canada, in connection with two murder cases. In 1985, Guy Paul Morin was arrested for the murder of nine-year old Christine Jessop, a crime that also involved sexual assault. Morin was acquitted in his first trial (in 1986) but was re-tried, and convicted, in 1992. In 1995, after 15 months in prison, Morin was exonerated on the basis of DNA testing, a technology not available when the crime had originally been committed. In fact, the DNA sample obtained from Christine Jessop’s clothing was so degraded by 1995 that an advanced form of the technology, only recently perfected, was needed to perform the analysis. The Morin case, and the manner in which it was originally investigated and prosecuted, is currently under intense review by the Ontario government.

More recently, forensic-DNA analysis was used to exonerate David Milgaard, who had been convicted in 1969 of the rape and murder of Gail Miller in Saskatoon. Milgaard spent almost 23 years in prison.(3) The Milgaard case differs from the Morin case in several important ways. First, there was a large amount of DNA (from semen) available for analysis from the clothing of Gail Miller. A U.S. forensic serologist, Edward Blake, who is also an expert on forensic-DNA, has suggested that this material, properly analyzed, would almost certainly have exonerated Milgaard in 1992 when new tests were carried out.(4)

The second major way in which the Milgaard case differs from that of Guy Paul Morin is that police have since arrested a suspect on the basis of the forensic-DNA evidence developed in 1997. Larry Fisher, a convicted serial rapist, who had long been suspected of being involved in the rape and murder of Gail Miller, has been arrested by the RCMP; Fisher’s DNA profile matches that obtained from the semen taken from Gail Miller’s clothing.(5)

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Check out this Toronto Star article by  Staff Reporter Vicki White published by The Toronto Star one May 5, 1995, under the heading: "DNA test will clear his name, Milgaard says:  

A taste: "Just as it did for Guy Paul Morin, Milgaard believes DNA testing of semen samples, found on the slain woman's underwear, could prove his innocence once and for all."


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PUBLISHER'S NOTE:  I am monitoring this case/issue/resource. Keep your eye on the Charles Smith Blog for reports on developments. The Toronto Star, my previous employer for more than twenty incredible years, has put considerable effort into exposing the harm caused by Dr. Charles Smith and his protectors - and into pushing for reform of Ontario's forensic pediatric pathology system. The Star has a "topic"  section which focuses on recent stories related to Dr. Charles Smith. It can be found at: http://www.thestar.com/topic/charlessmith. Information on "The Charles Smith Blog Award"- and its nomination process - can be found at: http://smithforensic.blogspot.com/2011/05/charles-smith-blog-award-nominations.html Please send any comments or information on other cases and issues of interest to the readers of this blog to: hlevy15@gmail.com.  Harold Levy: Publisher: The Charles Smith Blog.

SEE BREAKDOWN OF  SOME OF THE ON-GOING INTERNATIONAL CASES (OUTSIDE OF THE CONTINENTAL USA) THAT I AM FOLLOWING ON THIS BLOG,  AT THE LINK BELOW:  HL:


https://www.blogger.com/blog/post/edit/120008354894645705/4704913685758792985


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FINAL WORD:  (Applicable to all of our wrongful conviction cases):  "Whenever there is a wrongful conviction, it exposes errors in our criminal legal system, and we hope that this case — and lessons from it — can prevent future injustices."

Lawyer Radha Natarajan:

Executive Director: New England Innocence Project;


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FINAL, FINAL WORD: "Since its inception, the Innocence Project has pushed the criminal legal system to confront and correct the laws and policies that cause and contribute to wrongful convictions.   They never shied away from the hard cases — the ones involving eyewitness identifications, confessions, and bite marks. Instead, in the course of presenting scientific evidence of innocence, they've exposed the unreliability of evidence that was, for centuries, deemed untouchable." So true!


Christina Swarns: Executive Director: The Innocence Project;


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