Bronx court sets boundaries for crime lab techs’ testimony about methods and results

For decades, a defendant’s right to confront his accuser (6th Amendment) has been extended to certain types of “accusations” from forensic testers and their opinions supporting the Prosecution’s case.

This is an update based on a defense demand that all 6 crime lab techs who worked this case had to testify. Crime labs have been complaining about their techs languishing in courtrooms instead of working at the bench.

Newbauer [a Bronx Supreme Court judge] ruled in People v. M.F., 3760-2013, that it would be sufficient to call the technician who positively linked “M.F.” to the DNA sample from a vaginal swab taken from the rape victim to testify about OCME [the medical examiners’ office] testing procedures and its handling of DNA materials.

Newbauer also said that the first technician who dealt with the sample may be called, because the woman’s rapist was unknown when the sample was initially analyzed, and there are bona fide questions about the “first-stage protocols.”

The testimony of those two technicians would be testimonial while that of the others who handled the sample would be nontestimonial, Newbauer ruled.
Read more: http://www.newyorklawjournal.com/id=1202747994146/Ruling-Addresses-Limits-on-Forensic-Expert-Testimony#ixzz3yT7vGaqu

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Oh dear, a defense attorney wants to use a bitemark to counter cold case DNA

A criminal defendant’s attorney says a bitemark on a victim in a 27 year old murder is not his client’s teeth mark but someone else’s. The DA wisely isn’t using any junk bitemark opinions as there is ample DNA to identify the suspect in this cold case.

http://theadvocate.com/news/14659634-129/trial-begins-in-27-year-old-opelousas-cold-case-killing-vf

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The Fallacy of Forensic Uniqueness in Ballistics gets dented in DC

 

So, here is a DC judge calling out the VERY popular bullet casing matching process promulgated by the FBI around the US for decades. The theory of a striker or a firing pin leaving a toolmark which is identifiable to only one weapon sounds to be a repeat of other matching methods adopted by police labs for courtrooms. During their history the use of the “uniqueness” descriptive was their claim to fame. Such as…..

hair, bullets’ lead composition, graphology (handwriting), bitemarks,

All have been classified as unreliable by the FBI itself or the National Academy of Sciences in recent years. Casing matches has been highly automated to a certain extent via multiple software programs developed by and for law enforcement. More recently its being called “bullet fingerprinting.”

https://www.washingtonpost.com/local/public-safety/dc-court-of-appeals-judge-faults-overstated-forensic-gun-match-claims/2016/01/22/a4dbd8c2-c078-11e5-83d4-42e3bceea902_story.html

More about bullet casings…….A Flop

An early (2001) article talking about a study that tested some of the bullet matchers in California. It talks about a coverup.

 

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Houston crime lab needs to look into its bitemark experts’ current casework

The inquiry of the Texas Forensic Science Commission on bitemark evidence casework has opened a window into over 30 cases involving this debunked use of skin injuries purported to be like fingerprints.

What’s unsaid are data about any current cases of bitemarks being used in criminal investigations and pending prosecutions within Texas. They do exist and some District Attorneys have not been swayed by media reporting and the comments from the Commission on why using a bitemark expert to aid a prosecution is dangerous and highly likely to be incorrect. The bitemark people are usually itinerants having some loose connection to Forensic Biology or Forensic Pathology units throughout the state.

The Commission will publish an opinion on the bitemark debate in a few weeks. Maybe that will wake up DAs in Texas and elsewhere who like the bitemarkers history of gaining a conviction.

The Houston forensics lab is a good example of how similar goofs are still occurring in forensic lab protocols and performance despite the lab’s reorganization and new directors.

 

 

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Typical Forensic brewhaha happening in Denmark over who is in charge of MH 17 disaster

Will wonders never cease when it come to political forensic science. It should be a topic in school.

Awhile back, a forensic expert from the Russian-assisted shootdown of MH17 got canned by this Danish security minister who just got slapped for it by the Danish parliament.

http://www.nltimes.nl/2016/01/21/mps-grill-justice-min-over-mh17-forensic-expert-firing/

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Forensics : A learning point on how the Avery case shows little presumption of innocence

If the Steven Avery case(s) shows anything positive, it is the revelation how jury decisions of guilt are predominatantly preconceived before testimony ever begins. This then is reinforced as the prosecution proceeds with their evidence.

https://www.washingtonpost.com/news/in-theory/wp/2016/01/19/the-presumption-of-innocence-exists-in-theory-not-reality/

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Forensics : Details of trace evidence obtained in child murder/abuse case in Canada

The only thing the defense could get in rebuttal was that the CSI tech didn’t “test” every object available at the crime scene residence. Its a hint that the CSI could have missed some exculpable evidence usable for the defense’s case. That’s weak but not an uncommon strategy.

http://thechronicleherald.ca/canada/1335488-forensic-expert-at-trial-for-couple-accused-of-abuse-says-he-found-hair-in-tape

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Forensic Bias? Did an autopsy doc get wind of a suspect’s confession now considered coerced?

The interplay of homicide death investigations conducted by medical personnel employed by the same agency investigating a suspect is fodder for doubts concerning undo influence. Its the subject of this The Intercept article just out from Jordan Smith.

It is no fallacy that forensic experts not happy with their less than “she/he did the crime” results (like some bitemark people I know) will cheat towards stronger opinions when other evidence comes out from the police. I have had a couple judges actually agree with this tactic. Both times, while in court, my explaining what the “scientific method” says about such activities got me into dispute with the “gatekeeper.”

https://theintercept.com/2016/01/19/richard-masterson-did-a-dubious-confession-sway-a-medical-examiners-autopsy-in-a-texas-death-penalty-case/

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Forensics: Make sure you get all the case records and photographs before you testify

Sometimes, decisions must be made by an expert on the spur of the moment. One cannot prepare for all unexpected events. Here is an example.

Nothing is more embarrassing or potentially catastrophic to any forensic expert than to find out while in court that additional documentation or evidence  relevant to your opinion has just shown up. This case involves Werner Spitz (pathologist) in South Africa experiencing such a scenario. Here is Spitz in SA. 

I’ve had this happen a couple times. I once didn’t receive evidence vital to my opinion until the night before testifying. Later, after eventually testifying a month later, my opinion had changed due to this evidence. The opposing counsel dreamed up a scenario that I had only changed my opinion in order to get more money. The truthful answer I gave was “No.”

Years later, some scoundrels came up with the scenario that I had said “Yes.” They admitted such tripe into their courtroom arguments in a number of criminal cases.

Twisted minds indeed exist.

 

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How politics enters the crime lab from the front door: Cops influencing technician reporting

Forensic Fraud: Scientists Say State Police Gave In To Political Pressure With Crime Lab Policy

As much as the major forensic organizations (AAFS and state run lab associations and their accreditors) don’t object to the association of crime labs and police by saying it is a logistical match, the news keeps popping up with stories to the contrary. Its amazing how over-reaching police and police lab managers (who get defendants to plead guilty about 95% of the time) aid prosecutors on a regular basis and few seem to care other than defendants.

This time it is a continuing story in Michigan state whose labs have promulgated that any THC recovered by police will be recorded as synthetic rather than plant-based absent any testing. This article explains why.

A major voice in forensic science for 40 years says its not science that is the result. Some others seem to believe that “Criminal Justice” has developed a new biased meaning in certain applications.

http://wemu.org/post/forensic-scientists-say-state-police-gave-political-pressure-crime-lab-policy#stream/0       and

http://michiganradio.org/post/forensic-scientists-blast-state-police-crime-lab-thc-policy-man-fights-get-son-back#stream/0

Associated articles about the Michigan crime lab:

http://fox17online.com/2015/10/29/emails-spell-out-alleged-scandal-in-state-crime-lab-testing-falsely-reporting-marijuana/

http://fox17online.com/2015/11/05/drug-felonies-without-credible-proof-allegations-of-politicking-in-state-police-crime-labs/

 

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