Hair Evidence-Advanced Forensic Science
Hair evidence has been utilized for high profile cases that include homicide and robberies with violence. The paper will highlight the real issue that surround the use of hair for evidence and evidence processing, the viability of obtaining DNA transcriptions that are admissible in the forensic evidence presentation and the guiding principles of using such crime scene evidence as hair and other bodily materials.
There are central roles that hair evidence plays in the investigations to a crime omitted and these are the reasons why many forensic investigators find hair invaluable in their process. A thorough investigation of the hair evidence can more often than not indicate the race of the subject. They can also be easily compared to each other to determine whether multiple people were at the scene or a single subject also referred to as common origin of evidence. The hair gives the forensic personnel combing the scene an advantage of being able to collect multiple of them within the same crime scene. The hair evidence need to be collected using tweezers, kept in a paper bindle or coin envelop and further stashing it safely in a larger envelope and properly labelled. It is important to handle hair evidence with care, such that if the hair is caught in dried blood, glass, metal and such like objects, it should never be removed but left intact and be carried safely...
Crime Scene Analysis The case study presents a homicide incident, which occurred at 9170 Old Annapolis Road Columbia. The victim was Ashley Nicole Smith, and the investigations identified two suspects who were Scott Jory Jones, and Frederick James Johnson. This case involves a series of events in the efforts to bring the involved into justice. This case study presents an actual case, but the case study does not use the actual
DNA in Criminal Cases - Solving Cold Cases in California with Forensic Science This research will attempt to analyze and discuss the feasibility of DNA testing in solving cold cases and will study the impact that DNA fingerprinting has had on the forensic science community as a whole. DNA is generally used to solve crimes in one of two ways. In cases where a suspect is identified, a sample of that person's
DNA in Criminal Justice System DNA in the Criminal Justice System -- DNA as Evidence Justice and Science Sources of DNA at Crime Scene Evidence Collection DNA Evidence on Trial DNA Matching This paper addresses the use of DNA in criminal justice system. The research paper will cover the usage of DNA as evidence. The importance of DNA in any criminal case as forensic evidence will be discussed through case studies. The role of DNA in court
According to Harlan (2004), "Sample retention is problematic not only because of these individuals' innocence, but also because of the resulting availability of sensitive genetic information and the lack of legislative and jurisprudential protections guarding release of the information" (p. 179). This point is also made by Beecher-Monas and Garcia-Rill (2006), who caution that modern DNA identification techniques can be used to extrapolate far more than just an individual's
Hair is also in contact with chemicals in shampoos, and any dyes, gels, sprays or other cosmetics that may be placed on the hair (11). Since there is no standardized method for cleaning these external contaminants off of the hair prior to analysis, the potential for inaccurate results from external contamination is widespread. There is no way to tell in the laboratory if a chemical is contained within the hair,
Change them often; (2) Use disposable instruments or clean them thoroughly before and after handling each sample; (3) Avoid touching the area where you believe DNA may exist; (4) avoid talking, sneezing, and coughing over evidence; (5) Avoid touching your face, nose, and mouth when collecting and packaging evidence; (6) Air-dry evidence thoroughly before packaging; and (7) Put evidence into new paper bags or envelopes, not into plastic bags.
Our semester plans gives you unlimited, unrestricted access to our entire library of resources —writing tools, guides, example essays, tutorials, class notes, and more.
Get Started Now