Hair Analysis Forensic Science - 966 Words

Final Research Project Trichology is the study of hair. Interestingly, this study dates back to mid-1800s. However, hair analysis in forensic science began in 1930. During which time, a forensic scientist by the name of Edmond Locard introduced the Locard Exchange Principal. This principal hinges on the fact that any time there is contact between two surfaces an exchange of material will take place. (Oien, 2009) In this paper, I will prove how Forensic Hair Analysis and Forensic Hair comparison and studies if properly performed and correctly interpreted hair analysis meets all the scientific method standards. There are factors that are difficult to determine with hair analysis. Such factors include gender, age or race. When conducting an autopsy, a person’s body the bone tells a story about that individual. For example, by examining a person’s bones you can determine whether or not a person is a man or a woman and for about how long that person has lived. However, the hair does not. This may seem counterintuitive, but much can be learned about the human hair. Nationality on the other hand can easily be determined from hair analysis. One such example of a person’s race is that of a Caucasoid or European, Mongoloid or Asian, and Negroid or African follicles are all very distinct in texture and can be linked to that particular nationality. The analysis of hair is general in nature and limited to those three nationalities. Hair transfer occurs when naturally. Hair that isShow MoreRelatedIn The Forensic Science Field, Laboratory Tests Are Becoming1177 Words   |  5 PagesIn the forensic science field, laboratory tests are becoming more criticized in today s world of technology. Human hair is one of the most common types of evidence found at a crime scene. Following hair analysis, there is also DNA fingerprinting analysis. Many victims of this flaw have been wrongfully sent to serve time for these flaws in testing. There have recently been more strategies to help improve these tests and provide for a better outcome in trial. Labs now have certain guidelines to followRead MoreIntroduction. Forensic Dna Phenotyping Is A New And Emerging1577 Words   |  7 Pages Introduction Forensic DNA Phenotyping is a new and emerging field of forensic science. As it is so new, there is very little in terms of literature on this field, very little testing done on this type of identification, and few cases that have used DNA Phenotyping to assist in the investigation. The first documented case of DNA Phenotyping being used is in the early 2000s, so it has had under 20 years of research and experimentation with it. There are many weaknesses to the version of DNA PhenotypingRead MoreDigital Forensics And The Constitution1499 Words   |  6 PagesDIGITAL FORENSICS AND THE CONSTITUTION Daniel J. Riggleman Mount Aloysius College DIGITAL FORENSICS AND THE CONSTITUTION Until recently, forensic scientists needed only to study physical evidence to determine what had taken place at a crime scene. This consisted of gathering fibers and samples of any bodily fluids left behind and also taking note of every aspect of the crimes scene to determine what had happened. In today’s age, that is all still necessary for most crime scenes; however, there isRead MoreForensic Evidence And Criminal Investigation1350 Words   |  6 Pageshowever, one of the most important steps is the collection and analysis of evidence. According to the Encyclopedia of Criminology (2014), forensic evidence refers to the verbal statements and physical items presented to a neutral fact-finder in the court of law that assist him or her in rendering a verdict (Vandenberg, 2014). In simple terms, it is anything offered to a court to demonstrate if the suspect on trial is guilt or innocent. Forensic evidence can be separated into many categories such as traceRead MorePresentation At The 2010 Cooley Law School Symposium On The Csi Effect1113 Words   |  5 Pagesdescribes merged data from the two studies and the analysis of that merged data. The data supports the earlier suggestion of a tech effect based on cultural changes, rather than any direct impact on certain television programs or genres. It is suggested that while the prosecutor version of the CSI effect is a myth, there are increased juror expectations that arise from the combination of the tech effect, the general media portrayal of forensic evidence, and the misperception of attorneys and judgesRead MoreA Visual Of The Mitochondrial Dna1484 Words   |  6 Pagesmolecule shows where the DNA gets analyzed by forensic geneticists, the hypervariable regions 1 and 2. Figure 3. The results of the TaqMan system containing the DNA numbers from various analyzed sampled. Thesis Discussion DNA phenotyping serves to determine the physical attributes of a specific individual based off of genetic material that was left behind at a crime scene. By being able to determine physical traits such as hair color, eye color, height and skin pigmentation researchersRead MoreDr. Ketchum Processed All The Samples1053 Words   |  5 PagesBlind Study Author ship 1 North Louisiana Criminalistics Laboratory, Shreveport, LA Forensic DNA Extraction and DNA quantification No No Yes 2 DNA Diagnostics, Nacogdoches, Texas Forensic Extraction, Species Screening, Preliminary Species Sequencing and STR PP16 genotyping, mtDNA and nuDNA, testing known submitter (human) samples. No Yes No 3 Southwestern Institute of Forensic Sciences, Dallas, TX Hair Analysis No Yes No 4 Family Tree DNA, Houston, TX mtDNA confirmation and mtDNA whole genomeRead MoreCase Study: Forensic Toxicology870 Words   |  3 PagesIn this case study Forensic Toxicology was used to solve the murder of Robert Curley and obtained the conviction of his wife Joann Curley. In 1991Robert Curley began to feel ill, in August he was rushed to the Wilkes-Barre general hospital. He was having an attack and was experiencing numbness in his hands, intense sweating, a flushed face, repeated vomiting and a burning sensation in his feet. His doctors went through several diagnoses for his puzzling symptoms before he was diagnosed with Guillian-BarreRead MoreForensic Examination Of Forensic Science1434 Words   |  6 PagesForensic science is defined as science that pertains to law. Forensic science is used during investigations of a crime scene. Many forensic techniques are used during the investigation of crime scenes. These techniques are applied to what is considered to be trace evidence. Trace evidence is evidence left at the scene of the crime that helps tell the story of what had happened and could possibly lead to a suspect. The reliability of forensic evidence testing is a widely debated topic in the worldRead MoreStatistical Data Analysis Sample836 Word s   |  4 PagesStatistical data analysis was performed using programs MATLAB R2012b or R2014a and was conducted at 95% confidence level. Amino acids in the hair protein were determined using the relative peak areas and the concentrations were determined from a calibration curve from liquid injections of standard amino acid solutions of GC/MS analysis [8]. Also, ANOVA (one-way analysis of variance) was used to compare the mean concentrations of each amino acid between the case-control study groups. The F-test that