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An essay on forensic science
An essay on forensic science
An essay on forensic science
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Forensic Science
The idea of using the science has been started before the debuting of Sherlock Holmes in 1887, who had introduced about the forensic science to help criminal investigation. In history, the work of forensic scientists was performed by medical personnel. Until the end of eighteenth century, the attempts of French medical jurist Antoine Louis, crime solving Chinese book “ Hsi Duan Yu”(the washing way of wrongs), etc gave ideas about determining time of death, analyzing blood stain, identifying chemical used in crime, etc. After eighteenth century, the modern chemistry paved new way of identifying crime like the idea of measuring height, length of right ear and outstretched arm by Frenchmen Alphonse Bertillon (1853-1914). Similarly, the further development of methods like finger printing by Francis Galton (1822-1911), testing of blood samples in identifying crime by Dr. Karl Landsteiner (1868-1943), developing questioned document examination by Albert S. Osborn, pioneering of laser application by Menzel in 1970s and DNA-finger printing by Alec Jeffrey in 1985 bring revolutionary changes in criminal justice. These remarkable history are responsible for briefly tracing the development of crime and expanding in identification of various types of crimes.
In modern period, the crime laboratory has become so popular in crime investigation that widely depends upon the circumstances of crime, types of crime, social nature, size of community, available facilities and funding, and so on. In modern forensic science, the crime laboratories include photography section, Evidence storage section, identification section, chemistry section,...
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...n and analytical evidence like DNA, coatings, fluids, serology, etc are significant things that help in collecting each pieces of data or event from the crime spot to identify the criminals. The three basic deeds performed by it are helping law enforcement, highly reducing the occurrence of wrongful convictions and enhancing of homeland security of the nation.
Works Cited
http://www.ncjrs.gov/pdffiles1/nij/grants/228091.pdf
2) Author: Nickel & Fischer (1998), Crime Science, method of forensic detection (pp: 1-9). Press: University press of Kentucky
3) Author: Clarence Gerald Collins (1995), Finger Print Science (pp: 163, 5). Press: Copper house Publishing Company
4) Author: David E Newton (2007), Forensic Chemistry (pp: 1-7,138,140,142,165). Press: InfoBase Publishing
5) David Owen (2000), Hidden Evidence (pp: 218,226,227). Press: Firefly Books Inc.
...me scene, by recreating the scene using the blood direction a bloodstain patterns. Bloodstain pattern analysis use biology, chemistry, math, and physics to solve a crime. In doing research on this topic there is a lot of detail to go into this topic, so in suggestion this paper need to explain the other different investigators that process any crime scene.
Fulero, S. M., & Wrightsman, L. S. (2009). Forensic psychology. (3rd ed.). Belmont: Wadsworth, Cengage Learning.
Crime is a common public issue for people living in the inner city, but is not limited to only urban or highly populated cities as it can undoubtedly happen in small community and rural areas as well. In The Real CSI, the documentary exemplified many way in which experts used forensic science as evidence in trial cases to argue and to prove whether a person is innocent or guilty. In this paper, I explained the difference in fingerprinting technology depicted between television shows and in reality, how DNA technology change the way forensics evidence is used in the court proceedings, and how forensic evidence can be misused in the United States adversarial legal system.
Lyman, D. Michael; Criminal Investigation, The Art and Science; 3rd edition, 2002 Prentice Hall. Pgs. 188-200.
Hundreds across the nation watch forensic shows every day. From fictional shows similar to Criminal Minds and CSI, to nonfictional shows such as The First 48 and Forensic Files. However, these shows have something in common. Criminological programs continuously show how the crime happened, what it takes to crack the case, how investigators accumulate evidence, a...
Forensic psychology is a continually adapting sphere. It is hard to have one solid definition for the field, as there are so many aspects that interlock. Within each attribute of the forensic psychology has roles and responsibilities to sustain. The rapid growth and emerging importance of this field volumes of information will be developed in the next decade.
Crime scenes are known to have many clues left behind. The obvious would be a the body or bodies, clothing, and sometimes even the murder weapon. While these are great way to solve a case there's another kind of evidence; trace evidence. Trace evidence are small pieces of evidence that are laying around a crime scene. There are many types of trace evidence some of them include metal filings, plastic fragments, gunshot residue, glass fragments, feathers, food stains, building materials, lubricants, fingernail scrapings, pollens and spores, cosmetics, chemicals, paper fibers and sawdust, human and animal hairs, plant and vegetable fibers, blood and other body fluids, asphalt or tar, vegetable fats and oils, dusts and other airborne particles, insulation, textile fibers, soot, soils and mineral grains, and explosive residues. Although these are the most common found elements, they are not the only ones. The Trace Evidence Unit is known to examine the largest variety of evidence types and used the biggest range of analytical methods of any unit. materials are compared with standards or knowns samples to determine whether or not they share any common characteristics. In this paper I will discuss the different kinds of trace evidence and how crime scene investigaros use it to solve cases and convict criminal.
The criminal justice system has changed a lot since the good old days of the Wild West when pretty much anything was legal. Criminals were dealt with in any fashion the law enforcement saw fit. The science of catching criminals has evolved since these days. We are better at catching criminals than ever and we owe this advancement to forensic science. The development of forensic science has given us the important techniques of fingerprinting and DNA analysis. We can use these techniques to catch criminals, prove people's innocence, and keep track of inmates after they have been paroled. There are many different ways of solving crimes using forensic evidence. One of these ways is using blood spatter analysis; this is where the distribution and pattern of bloodstains is studied to find the nature of the event that caused the blood spatter. Many things go into the determination of the cause including: the effects of various types of physical forces on blood, the interaction between blood and the surfaces on which it falls, the location of the person shedding the blood, the location and actions of the assailant, and the movement of them both during the incident. Another common type of forensic evidence is trace evidence. This is commonly recovered from any number of items at a crime scene. These items can include carpet fibers, clothing fibers, or hair found in or around the crime scene. Hairs recovered from crime scenes can be used as an important source of DNA. Examination of material recovered from a victim's or suspect's clothing can allow association to be made between the victim and other people, places, or things involved in the investigation. DNA analysis is the most important part of forensic science. DNA evidence can come in many forms at the crime scene. Some of these forms include hair; bodily fluids recovered at the crime scene or on the victim's body, skin under the victim's fingernails, blood, and many others. This DNA can be the basis of someone's guilt or innocence; it has decided many cases in the twentieth century. As the times continue to change and the criminals get smarter we will always need to find new ways to catch them. Forensic science is the most advanced method yet, but is only the beginning. As the field of science grows so will the abilities of the
Once a crime has been committed the most important item to recover is any type of evidence left at the scene. If the suspect left any Deoxyribonucleic acid (DNA) at the crime scene, he could then be linked to the crime and eventually charged. A suspect’s DNA can be recovered if the suspect leaves a sample of his or her DNA at the crime scene. However, this method was not always used to track down a suspect. Not too long ago, detectives used to use bite marks, blood stain detection, blood grouping as the primary tool to identify a suspect. DNA can be left or collected from the hair, saliva, blood, mucus, semen, urine, fecal matter, and even the bones. DNA analysis has been the most recent technique employed by the forensic science community to identify a suspect or victim since the use of fingerprinting. Moreover, since the introduction of this new technique it has been a la...
In today’s time, modern Crime Scene Investigation has increased rapidly. From throughout the late 1900’s and in the early 2000’s (Taylor 1). For all of the evidence that they find, a solid foundation has formed over the thousands of years of Crime Scene
“Advance in Forensics Provide Creative Tools for Solving Crimes.” www.ctcase.org. Np. n.d. Web. 17 March 2014.
Forensic Science, recognized as Forensics, is the solicitation of science to law to understand evidences for crime investigation. Forensic scientists are investigators that collect evidences at the crime scene and analyse it uses technology to reveal scientific evidence in a range of fields. Physical evidence are included things that can be seen, whether with the naked eye or through the use of magnification or other analytical tools. Some of this evidence is categorized as impression evidence2.In this report I’ll determine the areas of forensic science that are relevant to particular investigation and setting out in what method the forensic science procedures I have recognized that would be useful for the particular crime scene.
Review, PubMed PMID: 19543886. Saferstein, R. (2011). Criminalistics: An introduction to forensic science (10th Ed.). Upper Saddle River, NJ: Pearson Education, Inc.
Forensic science has now been recognized as an important part of the law enforcement team to help solve crimes and cold cases. The advances in technology are being used each day and we must continue to strive to develop better advances in this field. The recent discovery of using DNA in criminal cases has helped not only positively identify the suspect, but it has helped exonerate hundreds of innocent individuals. “With new advances in police technology and computer science, crime scene investigation and forensic science will only become more precise as we head into the future.” (Roufa, 2017) Forensic science and evidence helps law enforcement officials solve crimes through the collection, preservation and analysis of evidence. By having a mobile crime laboratory, the scene gets processed quicker and more efficiently. Forensic science will only grow in the future to be a benefit for the criminal justice
Gaensslen, R. E., Harris, H A., & Lee, H. (2008). Introduction to Forensic Science and Criminalistics. New York, NY: The McGraw-Hill Companies, Inc. .