CHM 116 Lab Investigations of Buffers I. Purpose The purpose of this experiment was to get an understanding as to how to properly prepare chemical buffers. Also part of this experiment was to gauge the effectiveness of the buffers by measuring their pH levels in various titration solutions‚ using a pH meter. II. Procedure To start our experiment we had to prepare Buffer B‚ which was the .060 M Ammonia/Ammonium solution. Using 3.0 M ammonia‚ we had to calculate
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Some reasons that a homicide investigation starts at the primary crime scene is mainly because the police are usually called to this location by the person who discovers the body‚ or‚ a witness to the crime‚ but it could also in some cases even be the victim. In homicide cases‚ the location where the body is discovered hold a great deal of physical evidence and serves as a starting point for the beginning of an official investigation. At this point it is safe to say that it is important to assume
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crime. Since 1248 forensic science has evolved through the introduction of modern technology and knowledge on certain events. In modern times the perfect crime is almost impossible to commit as a direct result of hair fibres. In order to commit a perfect crime every hair fibre would have to be removed (Mr Sanchez‚ 2011). This essay explores the importance of hair fibres in forensic science and strives to grasp concepts of such a field. Aim The aim of this investigation was to closely examine
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Investigation Techniques Investigation Techniques for Homicide When investigating crimes‚ each type of crime has different types of investigation techniques that investigators will use to solve the crime at hand. One of the major crimes that investigators take part in is homicide investigation. There are several types of homicide ranging from justifiable‚ excusable‚ and criminal homicides‚ to murder and manslaughter. Though sometimes mistaken‚ suicide is technically not a form of homicide
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have been painted at the same location or with the same paint used on the body. With this known‚ it is important that the officer take a paint sample from the exact part of the vehicle upon which the damage occurred. In reference to hit and run investigations‚ paint samples should be taken near the point of impact‚ but should not be taken from areas where there is corrosion or rust. This procedure can be done by the investigator by removing a painted section with a clean scalpel or knife blade
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Arson investigation is a part of the more complicated science of fire investigations. The job of an arson investigator is to figure out if a fire has been intentionally set and how it started. I chose an arson investigator as a career is because my father has had over 25 years in this career and I am very interested in the career and it’s what I want to start pursuing after high school. You’re required to have a high school diploma or a G.E.D. and 5 years or more work experience in a related job
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printer works on the same principle as the ball head type writer on the typewriter the disk is made of plastic or metal and that makes the characteristics stand out. Critical Thinking Questions Why are questioned documents important in forensic science? What is one example of a situation where a questioned document might be an important part of a criminal case? They are
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visitors from injury caused by employees that the employer knows or should have known poses a risk to other (Woska‚ 2007). When conducting a reference or background investigation on an applicant‚ the most important and useful things to check for are criminal history‚ credit history‚ education history‚ and work history. A background investigation includes determining whether an applicant may be unqualified for a position and a reference check generally involves contacting applicants’ former employers‚ manager’s
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Always wondered how the mind works? How criminals get those deranged ideas when they commit those horrendous murders or crimes? “Forensic psychologists are professionals that often play a role in punishing and preventing crimes by applying psychological knowledge to legal matters‚ both in the criminal and civil areas” (Karen Franklin). In layman terms‚ forensic psychologists apply principles of psychology to criminal justice. When seeking a career in this field you must choose
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case‚ I am considering studying along the lines of forensics. When interested in forensics you have to familiarized yourself with science predominantly. Depending on the area a person wants to focus on would determine what classes are
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