Crime Scene Investigation Abstract Documentation of the crime scene starts with the first responder and does not conclude until the scene is released and the evidence has been impounded. Physical evidence comes in all shapes and sizes‚ and there are multiple search patterns that are used to identify evidence. These patterns include line/strip search (used by one or two investigators who walk in straight lines across the crime scene) this method is best used in scenes where the boundaries are
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The crime scene examination and subsequent search should be done in a careful and methodical manner. After talking to the officer(s) who were the first ones on the scene and learning from them of any changes that might have been made to the scene since their arrival‚ such as turning lights on or off or opening doors or windows‚ start the examination by working your way into the body using great care to avoid disturbing or destroying any evidence as you do. Carefully observe the floor or ground surrounding
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Biology Enzyme Catalase Investigation Aim: The aim of this investigation is to study and observe whether or not the concentration of hydrogen peroxide (varying from 10 – 30 millilitres) affects the rate of reaction. Hypothesis: With the increase of the concentration of Hydrogen Peroxide 3% substrate‚ I prediction that the rate of pressure increase will begin to amplify. The pressure is bound to increase because the catalase quickly reacts with the hydrogen peroxide; this is why the more substrate
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Lineups in criminal investigations has been the traditional form of identification for putting the focus on a specific suspect in a criminal case. Law enforcement agencies typically use three different types of lineups: field lineup‚ photographic lineup‚ and physical lineup. Field lineups take place shortly after a commission of a crime and the officers a have a suspect in custody and an eye-witness that is whiling to identify the suspect. The witness goes to the suspect’s location and asked if the
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Epidemiology in the Classroom » How to Investigate an Outbreak Steps of an Outbreak Investigation On this Page Step 1: Prepare for Field Work Step 2: Establish the Existence of an Outbreak Step 3: Verify the Diagnosis Step 4: Define and Identify Cases Step 5: Describe and Orient the Data Step 6: Develop Hypotheses Step 7: Evaluate Hypotheses Step 8: Refine Hypotheses Step 9: Implement Control and Prevention Measures Step 10: Communicate Findings In investigating an outbreak‚ speed
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Investigation # 1 “The fascinating life of Thomas Graham” (1805-1869) Thomas Graham made his own path by studying to be a chemist; instead of becoming a minister in the Church of Scotland like his father wanted. Graham became a student at the University of Glasgow in 1819 at the age of 14. After receiving his M.A.‚ he became a professor of chemistry at numerous colleges‚ including
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In solving a crime‚ a crime scene is usually imperative to the investigation. Documenting a crime scene helps to establish some of the evidence or rather investigative leads which may help solve the case. Additionally‚ the leads found in the crime scene can help solve the case or determine what happened. Poor scene documentation can prompt unacceptable evidence in a courtroom‚ or missed evidence that may permit a victim to escape with a crime. Photography is important during the documentation of
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1 Gemma Rutter CEGE‚ UCL Investigation of a beam in bending Gemma Rutter1 1CEGE department‚ UCL‚ London 1. INTRODUCTION Beams are one of the most essential components of man made structures and conducting experiments to observe how a beam behaves under loading is crucial to understanding its key aspects. For
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Serial Arsonist Conducting an arson investigation is a straightforward affair. The first thing to do is determine if the crime committed was actually arson‚ as arson has a strict definition. This can be especially difficult if the arsonist is skilled at his craft‚ and assume it’s a he because 94% of arsonists are young males (Baker‚ 2005). After investigating the scene and determining it was an arson‚ the next step is to determine what kind of arson it was‚ mass arson‚ serial arson‚ or spree arson
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Crime scene investigation requires the handling all types of potentially hazardous material‚ from blood and other physical evidence collected at the scene to the chemicals and other materials used by technicians as they perform their jobs. Failure to follow established safety and health procedures regarding the handling and disposal of hazardous material exposes crime scene technicians and others to a variety of risks. Technicians collecting evidence at crime scene must handle a range of biological
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