Preview

Microscopic Hair Analysis Errors

Good Essays
Open Document
Open Document
542 Words
Grammar
Grammar
Plagiarism
Plagiarism
Writing
Writing
Score
Score
Microscopic Hair Analysis Errors
For twenty-five years, the FBI instructed courses involving scientifically flawed information that the FBI examiners mentioned in lab reports and trial testimonies. The FBI mentioned that about ninety percent of microscopic hair analysis reviews contained erroneous statements. In fact, FBI agents’ testimonies have contained erroneous statements, as well as their submitted lab reports. The National Association of Criminal Justice Defense Lawyers (NACDL) objective was to address statements containing errors about microscopic hair analysis in testimonies or lab reports.
It was mentioned in the report, that the FBI started employing mitochondrial DNA hair analysis and microscopic analysis to help them throughout the process. Mitochondrial DNA testing is the process used to analyze hair in criminal case. However, before this came about, prosecutors relied on microscopic hair comparison in order to link a suspect to a crime. It was mentioned that mitochondrial DNA testing is too expensive or time consuming. The FBI wanted all affected defendants to be notified about the errors, as well as know that their justice will come. The concern of the FBI agents was why it took so long for this issue to surface and it started almost four decades ago. In order to limit the exaggeration of report
…show more content…
Reasoning for this, was that three men were convicted by three different FBI hair examiners whose testimony was scientifically flawed. Most of FBI testimonies were provided in state court prosecutions. Both the FBI and the Department of Justice reviewed cases that involved microscopic hair comparison linking a defendant to a crime. In fact, they reviewed cases in both federal and state court systems. However, they didn’t involve cases conducted by state and local crime labs. The FBI provided DNA testing for no charge if there was a request for testing by the

You May Also Find These Documents Helpful

  • Better Essays

    Further forensics of this hair, found in the trunk of Casey Anthony’s car, showed that the hair was in fact human, but there wasn’t part of the root, or DNA tissue so they identification could not be exact. However, the unknown hair had shown many similarities to that of the hair sample of Caylee Anthony, but it could not be determined for certain. Mitochondrial DNA was used to narrow down the identity, “Mitochondrial DNA is forensically useful to confirm a female lineage but does not individualize to one person” (Crime Museum). After this testing was done, it limited the hair to be that of a…

    • 1182 Words
    • 5 Pages
    Better Essays
  • Good Essays

    It has been approximately twenty months since 2001s September 11th terrorist attacks on the World Trade Center, and still victims' bodies are in the process of being identified. In matters like this, forensic scientists are forced to "bring out the big guns." Researchers can compare DNA samples from bodies to those taken directly from the victim: from hair, a toothbrush, a family member, and etcetera (Whitfield 6).…

    • 290 Words
    • 2 Pages
    Good Essays
  • Good Essays

    Forensic investigation often employs the use of DNA testing in order to place potential suspects at the scene of a crime, and in Gattaca the technology, while being much more rapid, is also implemented, and accessible by the public. When Irene takes "Vincent's" hair to be checked by a genetics booth, she is given an entire roll of information on the owner of the hair, and even a rating of his validity, "9.3, quite a catch". While modern DNA technology has…

    • 877 Words
    • 4 Pages
    Good Essays
  • Better Essays

    During the investigation several fibers and two hairs were found on the boys, one negroid hair and one Caucasian hair.(Sauls) None of these hairs or fibers could be linked directly to any of the three boys. This evidence was also somewhat just tossed aside and overlooked for the remainder of the case… I wonder why?…

    • 1927 Words
    • 8 Pages
    Better Essays
  • Satisfactory Essays

    Hair Analysis Trial

    • 430 Words
    • 2 Pages

    My name is Joshua Belle and I am an expert in Hair Analysis for the purpose of forensics. I am here to present evidence to the jury. As you all know, several months ago a woman’s dead body was found in the local dump, with several markings which indicate a murder. As you will see, I have found substantial evidence linking the defendant to the crime.…

    • 430 Words
    • 2 Pages
    Satisfactory Essays
  • Satisfactory Essays

    Introduction:Dna evidence has been known for many years in crime scenes.Dna evidence was first discovered in 1986.Dna evidence can find anyone by finding blood,skin cells,hair,saliva,and semen.Dna evidence can be good at finding people 95% at a time,because of the cells in the dna.…

    • 377 Words
    • 2 Pages
    Satisfactory Essays
  • Good Essays

    Hair Testimony Essay

    • 865 Words
    • 2 Pages

    In order for the hair samples to be convincing and enough evidence to catch a…

    • 865 Words
    • 2 Pages
    Good Essays
  • Good Essays

    Ppe Investigation Report

    • 695 Words
    • 3 Pages

    There are many ways to collect evidence. The different collection methods depend on the type of evidence being collected. All evidence should be secured and documented as soon as possible with the proper collection techniques. In this lab, i was responsible for the unknown brown fibrous strands (hair). It was found in on the sofa across from the possible murder weapon.…

    • 695 Words
    • 3 Pages
    Good Essays
  • Good Essays

    The CSI Effect

    • 885 Words
    • 4 Pages

    “The CSI Effect is a recent phenomenon that can be attributed to the influence of mass media. The term started appearing in legal lexicon in 2003; roughly 3 years after the show and its spin-offs became wildly popular options for the American public” (Heinrick 59). This so called “CSI Effect”, is creating major controversy in the courtroom. There is such a large different between what the media depicts and real forensic science that jurors now believe that they are more educated than prosecutors themselves. It is becoming extremely important that attorneys, judges, and anyone else involved in a case to be aware that jurors are expecting great things in regards to forensic evidence. If the “CSI Effect” is ignored within the courtroom, there is no telling what will happen. The guilty may be let free or the innocent could be wrongfully accused of something they didn’t do. In addition to the “CSI Effect”, another similar effect that has been formed because of CSI-type shows is the “Tech Effect”. The “Tech Effect” is very similar to the “CSI Effect” and is defined as a mentality in which jurors “hold higher expectations for forensic evidence because of the actual development in forensic technology” (Cole & Dioso-Villa 1345). Both the “CSI Effect” and the “Tech Effect” affirm that reality crime shows are changing the minds of its viewers, while some forensic accomplishments have been…

    • 885 Words
    • 4 Pages
    Good Essays
  • Good Essays

    Dror was not trying to challenge fingerprint analysis as a science or its reliability but instead its ability to be influenced by the many elements that can affect those who examine the data. The possibility of falling vulnerable to psychological and cognitive bias exists when evaluating fingerprint data. External influences can cause an expert to make an unintentionally biased decision. Similarly, context, motivation, and emotions can distort perception and judgments causing experts to make mistakes in their evaluations (Ladwig, 2017). People can be corned into a frame of mind that can affect how they view and interpret information. Of course, this occurs on a subconscious level but is significant in evaluating the issues in fingerprint analysis. Therefore, it is important to apply and learn the cognitive and psychological influences in the processing of fingerprint analysis. There are many errors that experts can make in fingerprint analysis whether intentionally or unintentionally. These errors may stem from negligence, incompetence, cognitive and psychological phenomena and even a lack of accountability on the criminal justice system. Even though these vulnerabilities exist, fingerprint analysis is more reliable than eyewitness testimony. In forensic science, much of the data evaluated can be susceptible to human bias and nothing is ever 100% accurate. However, eyewitness misidentification contributes to 75% of wrongful convictions (Schwartz, 2017). It is not always possible for an eyewitness to accurately recollect events from a past crime and provide testimony that is completely reliable. There is an extraneous number of factors that can affect eyewitness memory. Many of these factors are both within and not within the control of the criminal justice system but highly affect a witness’s testimony. To conclude, both fingerprint analysis and eyewitness memory can be reliable sources but are never 100% dependable. This can be seen by all the…

    • 791 Words
    • 4 Pages
    Good Essays
  • Good Essays

    The first department and sub-sections we will dicuss is the Biometric Analysis unit. This department is made up of 5 sub-sections. The first of which is the Combined DNA Index System(CODIS). The CODIS unit manages the CODIS system as well as the National DNA Index. The Federal DNA Database Unit makes DNA profiles of federally convicted offenders, offenders facing federal charges as well as non- U.S. citizens held under U.S. authority. In the Latent Print Analysis department they examine finger, foot, and palm prints. The Mitochondrial DNA unit examines biological items of evidence from crime scenes to determine the mitochondrial dna sequence from samples such as hair,bones , and teeth. This unit also maintains the National Missing Person Database. The last unit in this department is the DNA-Nuclear department. The FBI started using data testing in forensics in 1998. The FBI uses Polymerase Chain Reaction (PCR) and Short Tandem Repeat (STR) analysis to detect minute amounts of biological…

    • 1109 Words
    • 5 Pages
    Good Essays
  • Good Essays

    Nine factors surface from the case descriptions as mutual features that are related to these I mistaken convictions, ranging from flawed eyewitness identification to the lack of post conviction procedures that might help correct the mistakes. In most cases, more than one of these factors was present.…

    • 825 Words
    • 4 Pages
    Good Essays
  • Powerful Essays

    Exoneration is an action in which someone is cleared of guilt, blame, responbility, obligation in criminal law. Providing an avenue to allow innocent people to be discharged of guilty verdicts .…

    • 1082 Words
    • 5 Pages
    Powerful Essays
  • Good Essays

    Racial Profiling

    • 1204 Words
    • 5 Pages

    Wood, Mary. “Study of First 200 DNA Exonerations Shows Flawed Criminal System” law.virginia.edu, July 23, 2007.…

    • 1204 Words
    • 5 Pages
    Good Essays
  • Good Essays

    The current methods of fingerprinting that involve subjective comparison and matching of fingerprinting has led to disapproval of the method. Extensive testing has shown that the results of fingerprint testing are not valid (Schmalleger, 2011). Fingerprint matches are now being done by experts, those fingerprints that have been previously been examined to make identification of suspects were presented to the same experts in a different context and the results were different. Similarly, DNA evidence for identification of criminals has been marred by several problems. Surreptitious DNA collecting, presentation of partial DNA profiles, and fake DNA evidence; cast doubts on the DNA evidence presented in courts (Schmalleger, 2011).…

    • 593 Words
    • 3 Pages
    Good Essays