Preview

Module 9.07

Good Essays
Open Document
Open Document
693 Words
Grammar
Grammar
Plagiarism
Plagiarism
Writing
Writing
Score
Score
Module 9.07
Your first lab link can be found at Autopsy of a Crime Scene.

1.Which technique is the best choice when blood is found at a crime scene? In the genetics laboratory (under "resources" at the bottom of the window), who is one individual that contributed to modern genetic analysis? What did this person contribute?
I would say that analyzing the blood in a lab would be the best technique. Alec Jeffreys is known as the father of genetic profiling. He invented what is now an essential technique, especially in forensic science, called a polymerase chain reaction, or PCR.
2.How are computers used in fingerprint analysis?
Experts examine tiny fingerprint details known as minutiae. These may be loops, dots, forks, islands, etc. Several comparison points must be perfectly matched for two fingerprints to be considered identical.
3.Who is a pioneer in fingerprint analysis? Describe a famous case that this person was involved in.
Edward Foster studied fingerprint analysis in the US and introduced it to Canada. IN1911, Foster testified as a fingerprint expert in the Jennings case. Fingerprints in the wet paint next to Mr. Hiller, the murder victim, were the only clue. Foster demonstrated to the court that the prints of Thomas Jennings, who had been arrested as he was fleeing the scene, matched those left in the paint, and Jennings was convicted.
4.What is the role of the forensic chemist in crime scene investigation?
These experts analyze all chemical, organic, and inorganic aspects of a sample. They separate the components and identify them using a variety of tests and devices. Their findings are used as evidence by the investigator and in court.
5.Who helped pioneer forensic chemistry? Describe one of her famous cases.
France McGill became a pathologist and teacher is Saskatchewan. When Dr. McGill examined the stomachs of an elderly couple who had died on Christmas Day, she found a large quantity of strychnine, a powerful poison, along with the bran. The murder

You May Also Find These Documents Helpful

  • Satisfactory Essays

    SC1130Wk10

    • 350 Words
    • 2 Pages

    Once the blood sample is isolated from all other organic material DNA is extracted from its biological source material using a hypotonic chemical buffer and being centrifuged. The extracted DNA is then measured to evaluate the quantity. After isolating the DNA, specific regions are copied with a technique known as the polymerase chain reaction, or PCR. PCR produces millions of copies for each DNA segment of interest and thus permits very minute amounts of DNA to be examined. The resulting PCR products are then separated. The separation methods used today include slab gel and capillary electrophoresis. Fluorescence detection methods have greatly aided the sensitivity and ease of measuring PCR-amplified samples. The specific methods used for DNA typing are validated by individual laboratories to ensure that reliable results are obtained and before new technologies are implemented. Samples are then compared to each other as well as DNA databases which are a valuable tool and play an important role in apprehending criminals that have committed a crime before.…

    • 350 Words
    • 2 Pages
    Satisfactory Essays
  • Satisfactory Essays

    Forensic Science 9.07 lab

    • 365 Words
    • 2 Pages

    1. The best choice of a technique when blood is found at a crime scene is analyzing the blood. In the genetics laboratory the person who contributes I would say is Alec Jeffreys as he is known as the father of genetic profiling.…

    • 365 Words
    • 2 Pages
    Satisfactory Essays
  • Satisfactory Essays

    9.07 Lab

    • 367 Words
    • 2 Pages

    3.Edward Foster was a pioneer in fingerprint analysis. He was an expert witness in the Jennings Case, in which he showed the courts that the fingerprints in the wet paint were that of the murderer, Thomas Jennings.…

    • 367 Words
    • 2 Pages
    Satisfactory Essays
  • Good Essays

    In 1892, Francisca Rojas was found with intense neck injuries while her two sons were found with their throats cut open and dead. Francisca Rojas fanatically accused her neighbor who, under extreme interrogation, would not confess of committing murder and injuring Rojas’s neck. Inspector Alvarez, the head of the case, went to the crime scene and found a bloody fingerprint next to where the boys laid. After comparing the fingerprint to those of the neighbor, mother, sons, and other suspects, Alvarez deduced that it matched the mother’s right thumbprint. She then confessed to the murdering of her sons. The discovery of the print saved an innocent neighbor from harsh punishment. Fingerprints help solve crimes and save people's lives everyday. For that reason, it is important for people to understand fingerprints significance.…

    • 1226 Words
    • 5 Pages
    Good Essays
  • Satisfactory Essays

    01

    • 285 Words
    • 1 Page

    One pioneer in autopsy is James Marsh. He devised a test that could better stand up in court after a man laced his grandfather’s coffee with poison and was acquitted.…

    • 285 Words
    • 1 Page
    Satisfactory Essays
  • Satisfactory Essays

    U5 9B

    • 316 Words
    • 1 Page

    1. What are some of the challenges with fingerprint evidence? What is science doing to make fingerprint analysis better?…

    • 316 Words
    • 1 Page
    Satisfactory Essays
  • Satisfactory Essays

    Forensic Science Unit 4

    • 391 Words
    • 2 Pages

    Answer: They need to make sure it is blood or another substance. They can learn who it belonged to especially if it is dried.…

    • 391 Words
    • 2 Pages
    Satisfactory Essays
  • Good Essays

    The Colette Aram Case

    • 294 Words
    • 2 Pages

    Advancements in forensics science and DNA technology has revolutionised our ability to solve crimes, subsequently helping to develop clear and concise investigative processes. The discovery of DNA and methods of identifying individual genetic imprints such as Familial Searches has allowed more sophisticated analysis which has advanced since the Colette Aram case. Identification of DNA is vital when identifying and convicting suspects or even exonerating individuals. Thus, having an accurate system of DNA identification has been an essential discovery of the 20th century (British Medical Association, 2012). This paper will examine the limitations encountered while investigating the Colette Aram case, subsequently analyzing the advancements that…

    • 294 Words
    • 2 Pages
    Good Essays
  • Satisfactory Essays

    Jammer

    • 323 Words
    • 2 Pages

    5. Who was the first person to apply the principles of forensic science to a working crime laboratory? It was Albert S. Osborn. He wrote the book Questioned Documents.…

    • 323 Words
    • 2 Pages
    Satisfactory Essays
  • Satisfactory Essays

    2. Forensic science has been increasingly used by the criminal justice system because of its growing accessibility. Technological advances over the last hundred years have made methods such as finger printing, blood and DNA analysis, and other forms of identification much easier for forensic scientists to perform, thus paving the way for the development of this field. Similarly, there has been an increased popularity for…

    • 625 Words
    • 2 Pages
    Satisfactory Essays
  • Good Essays

    Module 10

    • 861 Words
    • 2 Pages

    1. Why are questioned documents important in forensic science? What is one example of a situation where a questioned document might be an important part of a criminal case?…

    • 861 Words
    • 2 Pages
    Good Essays
  • Satisfactory Essays

    Mark Twain used fingerprintts to solve murders in Life on the mississippi and Puddin'head Wilson; these were popular books.…

    • 55 Words
    • 1 Page
    Satisfactory Essays
  • Powerful Essays

    books

    • 10661 Words
    • 124 Pages

    since Edmund Locard, there has been tremendous growth in forensic science. There are four main reasons there have been an increase in the number of forensic laboratories since the 1960s.…

    • 10661 Words
    • 124 Pages
    Powerful Essays
  • Good Essays

    The blood patterns can give clues concerning the scene while the genetic angle can be utilized to trace the criminal. The presentation would meet several objectives. It poses a challenge to the trainee to use critical thinking in the investigation. Also, it teaches him/her of the various significant elements to consider while at a crime scene. To achieve the objectives, the training may consume few days. The video summarizes the various aspects of the subject. This presentation resembles the first video since it addresses the issue from a practical point of view. Also, they both suit the class of…

    • 1012 Words
    • 5 Pages
    Good Essays
  • Good Essays

    Individual Work 1

    • 847 Words
    • 4 Pages

    Galton was not the first contributor to the idea of fingerprinting but he was the first contributor to follow through with making it a successful new way of identification. Alphonse Bertillon came up with a systematic way of identifying persons by taking measurements of different parts of their bodies. This procedure was used for nearly 20 years before being replaced by fingerprinting. There were to other contributors to the idea of fingerprinting: U.S. microscopist Thomas Taylor whom “…suggested that fingerprints could be used as a form of identification, but his ideas were not immediately followed up” (Saferstein, pg. 8, 2009), and Scottish physician Henry Faulds whom “…made a similar assertion in a paper published in the journal Nature.” (Saferstein, pg. 8, 2009)…

    • 847 Words
    • 4 Pages
    Good Essays