Who normally conducts the preliminary investigation? What are some of the actions the first responders can take once they arrive at the scene of the crime? Since the preliminary investigation starts when the first emergency call is received‚ it is typically administered by the patrol officers who are first to respond to the scene. First responders can either preserve or contaminate the crime scene‚ which can possibly result in either the success or failure of the prosecution. Accordingly‚ the steps
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Activity and Thermal Stability of Gel-Immobilized Peroxidase. Taylor Thompson taylor.thompson72895@gmail.com Department of Chemistry‚ University of North Florida‚ 1UNF Drive‚ Jacksonville‚ FL 32224 _____________________________________________________________________________________________ Immobilizing an enzyme provides various analytical benefits‚ and can be done in a myriad of ways‚ with the most common being entrapment. For this study peroxidase (from horseradish)‚ an enzyme that catalyzes
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University of Malta Institute of Forensic Studies B.A 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
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Catalase Enzyme Lab Samiya Hussein March 9‚ 2012 Introduction In order to receive the necessary amounts of energy required for daily function‚ the digestive system must break down proteins‚ fats and carbohydrates. In doing so‚ the body produces poisonous chemicals; however‚ the cells aren’t harmed. This is because enzymes are used to break down these chemicals. The name of the enzyme that was the main focus of the lab is catalase. Catalase is responsible for catalyzing hydrogen peroxide
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Franklin 1 Jonathan Franklin Allen Layne Criminal Investigations 18.OCT.2013 Investigations And The Principles A successful crime scene investigation depends deeply on the collection and analysis of various kinds of evidence. Forensic scientists rely on the classification of certain evidence and they have different ways of dealing with it. One major difference is biological and physical. Physical evidence refers to the collection of anything at the crime scene that comes
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Aim. The aim of this investigation is to find out how Slaters react to an increase or decrease of the temperature in its surroundings. Hypothesis The speed of the Slaters will increase when the temperature of its environment is increased or decreased from its preferred range‚ so it ensures that they spend less time in unfavorable conditions to avoid desiccation. Method 1. This experiment is done using a water bath to change and control the temperature being trialed. The water bath will have
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Often two types of investigations have been differentiated. The ‘reactive approach’ to investigation occurs when a police responds to a crime that has already taken place such as murder‚ or theft. On the other hand‚ the ‘proactive approach’ to investigation occurs in response to an ongoing criminal activity or even before the crime has been committed. For e.g. the police may get information that a gang is going to commit a crime in a particular area. In other cases‚ the police may patrol an area
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Enzymes are catalytic proteins that speed up chemical reactions by lowering the activation energy of the reaction. our body cells depend highly on enzymes to complete many important functions‚ such as digestion and metabolism. Enzymes are selective‚ in which each enzyme can only speed up a specific reaction. There are molecules that enzymes work with called substrates. substrate bind to an area of an enzyme called active site. There is specificity between the enzyme and substrate that react with
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PENDULUM INVESTIGATION Aim of the investigation The aim of the pendulum investigation is to see what will happen if I change a variable whilst I swing a pendulum and see the effect which it has on the pendulums time to complete one whole swing (from where it starts‚ to the opposite end‚ and back again). This will give me an insight into what will effect the time of the swinging of the pendulum‚ be it weight‚ string length‚ the angle‚ or the swinging point. Planning my investigation I will
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Part One I have chosen to investigate Autistic Spectrum Disorder and how it can affect a child’s behaviour. Autistic Spectrum disorder (ASD) is a developmental disorder that is characterised by lack of social skills‚ aggressive behaviour‚ lack of imagination‚ difficulties communicating and repetitive behaviour. (Anderson et al‚ 2008) Children that have ASD can find it very difficult when dealing with social situations. This is because they lack the ability to read other people’s faces and emotions
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