to secure one’s identity and individuality. Different system like face recognition‚ fingerprint analysis‚ voice recognition and signature verification are some of the examples of biometrics. Biometrics is the science and technology of measuring and analyzing biological data. In information technology‚ biometrics refers to technologies that measure and analyze human body characteristics‚ such as DNA‚ fingerprints‚ eye retinas and irises‚ voice patterns‚ facial patterns and hand measurements‚ for authentication purposes
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field. The practice of fingerprint comparison is not regulated fairly and clearly as it was seen the case with Brandon Mayfield. He was wrongly accused of terrorism in Madrid Spain because his fingerprints were identified as a match to a partial fingerprint on evidence from the scene. It was concluded by “Experts” in their field that this evidence was 99% correct. However‚ what they did not testify to was that the match was based on their “opinion” that the fingerprint was a match‚ not that the
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years to help solve puzzling crimes. But not to many people know just how long the art of forensic science has been around. For example evidence of fingerprints were found in paintings and prehistoric rock carvings made by humans. The Chinese have probably used forensics much longer than most civilizations. For example back in the 700’s they used fingerprints to find out the identity of documents and clay sculptures. What made this unusual was that there was no form of classification system back then
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Identifying and Collecting Physical Evidence There are many differents things involved in the identification and collection evidence. In order to do these things you have to know what things like what physical evidence is‚ what impressions are‚ different types of evidence you could find and how to use it and knowing what forensic science is and the different types is important too. Also you need to know the proper labelling technique. In order to prosecute someone you have to be able
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Module 4: Review and Critical Thinking Review Questions 1. What are the three types of fingerprints found in the human population? How often does each occur? 60-65 percent of the population has loop fingerprints. 30-35 percent have whorl fingerprints. 5 percent have arch fingerprints. 2. What is a medulla? What do forensic scientists use this for? A medulla is a set of cells that run through the hair and is different depending on the species it came from. 3. What is a precipitin test? What is
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Forensic Science revised 4/10 Power Point presentation of a landmark case that changed forensic science Length of the presentation : 10 minute minimum Solo project 200 points DUE Date: Thurs‚ June 3‚ 2010 What should you cover in your presentation ? Case Summary- Summarize the main points of your case Who is involved in this case ? Who is important ? victim(s)‚ perpetrator(s)‚ investigators‚ family members‚ etc What happened ? Tell the story of your case. Present
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DNA databases: crime fighting weapon or threat to privacy 1- A DNA database is a database that contains a profile of bodily fluid left by criminals at the crime scenes. It has developed by the biology laboratory of the Florida department of law enforcement. These profiles are sent to nationwide DNA bank. There are several benefits of these DNA databases. First‚ the DNA can be used as evidence in trials. It allows criminals to be identified by their own genes. Second‚ the computer analysis
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Fingerprint Debate The value of fingerprinting and background checks is to make sure that the students are being protected. It is extremely important that for the safety of the students as well as the other teachers the school must do thorough background and fingerprinting checks. In doing background and fingerprinting checks you can tell the employer with pieces of information about the teachers background’s that can share credit reports‚ social Security number‚ criminal records
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without some trace or transfer being left behind‚ detectives and CSI are taught to look for the smallest sometimes most inconspicuous pieces of evidence. Trace evidence can come in many forms. The most common types of trace evidence are hair‚ fingerprints‚ and biological fluid stains. When collecting hair‚ especially at a violent crime scene‚ there are several factors that have to be determined once collected. Some of those being whether or not the samples came from a human or
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Physical evidence refers to any item that comes from a nonliving origin‚ while biological evidence always originates from a living being. The most important kinds of physical evidence are fingerprints‚ tire marks‚ footprints‚ fibers‚ paint‚ and building materials. Biological evidence includes bloodstains and DNA. Locard’s exchange principle dictates that evidence‚ both physical and biological‚ is to be found at the scene of a crime because the perpetrator always leaves something behind by having
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