Criminology 3rd Year 2008 Credit: FRS 3008 Criminal Investigation Lecturer: Mr. John Charles Ellul Fingerprint Evidence Contents • Introduction • History of Fingerprint Evidence • Fingerprint Evidence • Strengths and Weaknesses of Fingerprint Evidence • Case Study involving Fingerprint Evidence • Conclusion • Bibliography
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Midterm Essay CJ21-Criminal Investigation Professor Yocum September 28th‚ 2010 Throughout the years the type of crimes and amount of crimes committed has changed significantly and has played a major role in the American society. What is crime? As defined by Frank Schmalleger (2007) “crime is a conduct in violation of the criminal laws of a state‚ federal government or a local jurisdiction where there is no legally acceptable justification or excuse” (p.7). Criminal investigators have the
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Abstract-Timur Solid phase extraction is a sample preparation technique that overperform liquid /liquid extraction in its efficiency‚ labor intensity and waste disposal. The purpose of this lab is to learn how SPE can be used to identify trace amounts of Vanillin. Stock solution of vanillin in water with concentration of 50 ppm was prepared. Four solutions with concentration of 5 ppm‚ 1 ppm‚ 0.5 ppm and 0.1 ppm were made from stock solution. UV-Vis spectra of standard solution was recorded at 229
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Criminal Investigations The method of inquiry is the way that an investigator or detective gathers information about a specific case. There is several different method of inquiry such as evidence collection‚ witness and victim statements‚ and information stored in public and private databases. The methods of inquiry are used to figure out what happened at a particular crime scene. A criminal investigator is trying to establish the who‚ what‚ where‚ when‚ why‚ and how of the crime. During this process
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http://projects.nfstc.org/trace/2009/index.htm Website is run by the National Forensic Science Technology Center. This website gives a brief description of what trace evidence is. It states “ Trace evidence is considered one of the most diverse of the forensic disciplines because it can include the analysis of paint‚ glass‚ hair‚ fibers‚ particulate matter‚ botanicals‚ explosives‚ and impression evidence‚ among others.” It goes on to state how the understanding of trace evidence can be crucial to
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help to set priorities for any remedial action found to be necessary if for instance risk assessments and safe systems of work need to be amended. An investigation would additionally help to demonstrate management commitment to health and safety and assist in maintaining and
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Nothing is more crucial to any investigation than the actions of the first officers on the scene and the actions they take regarding the preservation of the crime scene‚ detention of witnesses and an arrest if possible. The immediate objective of the first officers on the scene must be the safety of all parties involved and all else follows Crime scene preservation should be the most important step to any first responder. This protocol should continue to be followed by anyone who processes
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1) Biological Approach The Biological approach studies the relationship between behavior and the brain and nervous system. Theorically all behavior can be related to changes in brain activity. Because brain is the processing centre that controls all complex behavior. One of the main assumptions of the biological approach is that all behavior is associated with changes in brain function. Therefore the psychopathology will occur due to changes in either the structure if related to changes in the
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reported that some type of evidence was either lost‚ misplaced or due to some error was no longer usable to solve a crime. More than likely‚ the blame to this goes to the ones who are in charge of the facility that stores the evidence‚ such as the police department property and evidence rooms. Most police departments store the evidence in a room that is monitored‚ cataloged and secured. That evidence can be a weapon‚ a video‚ a voice recording‚ documents‚ money‚ drugs‚ blood‚ clothing‚ even organs
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Blood is the best known as significant evidence in modern criminal justice. Blood evidence is important to an investigator because it can link a victim to a suspect (Locards Exchange Principle). Bloodstain patterns can reveal a great deal about the position and movement during the crime. Blood has managed to destroy self-defense arguments from the suspects. The fluid portion of the blood consists of plasma and serum while the non-fluid portion consists of red blood cells. Blood is composed of water
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