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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Forensics Notes: Introduction: * Bloodstain pattern interpretation should be viewed as a forensic tool that assists in investigator of the forensic scientist to better understand what took place in what could not have taken place during a bloodshed event. * The information obtained from the interpretation of bloodstain patterns may assist in apprehending a suspect‚ corroborate a witnesses statement‚ assist and interrogating suspects‚ allow for the reconstruction of past events‚ and most
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Blood for Sale Case Study Blood for Sale Ethics Phil-245 I found the article called Blood for Sale very intriguing. Many questions arose from this on my mind. The most obvious is‚ how ethical is it to sell blood to people who need it? The other issue that bothered me is‚ how ethical is it to underpay and overcharge for that blood? My initial reaction to this was complete disbelief. I found it hard to understand how anyone could do some of the things mentioned until I reread the article
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The understanding of blood spatter patterns is not a widely recognized forensic practice. Bloodstain pattern interpretation (BPI) is commonly used in murder investigations‚ but could be utilized in everything from simple assault to mass murders if the number of trained professionals increased. BPI can reveal critical information into reinventing a given crime scene. Everything from the number of blows‚ stabs or shots a victim was given‚ the movement that was undergone by the victim and assailant
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Specific Objective: Carry out test for reducing sugar‚ non reducing sugar‚ starch ‚ protein and lipid. BIOCHEMICAL TESTS Reducing and non-Reducing Sugars Sugars can be classified as either reducing or non-reducing based on their ability to reduce copper(II) ions to copper (I) ions during the Benedict’s Test. Reducing sugar have contain free aldehyde or ketone group and have the ability to reduce copper(II) ions to copper (I) ions during the Benedict’s Test. All monosaccharides are reducing
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Safety measures in the chemistry laboratory The mentors are responsible for instructing the competitors as to the risks to which they are subjected when working in a chemistry laboratory‚ as well as to the basic safety measures‚ and first aid. Specific behavioral and safety measures must be obeyed to prevent accidents. Rules in the lab: * Use protective clothing all the time (e.g. lab coat and safety glasses) * Use a hair band to keep your hair away from your face. *
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Criminalistics I - 7m Instructor: Travis Allen Blood patterns 1. Explain the terms area of convergence and area of origin and explain what each term reveals to an investigator. Area of convergence is a two dimensional plane where lines traced though the long axis of‚ several individual bloodstains meet. Two dimensional places from which the bloodstains were projected. (saferstein) Area of origin location in three dimensional spaces that blood that produced a bloodstain originated from. Location
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The blood fetish The blood fetish is a short story‚ which is written by Morley Roberts in 1908. The gothic genre was quite popular around the late eighteenth and early nineteenth century‚ and they were known for including horrific and supernatural elements. Gothic novels often takes place in creepy environments‚ as old castles‚ dark forests and abandoned houses. It is clear to see how The blood fetish fits into this genre‚ as it deals with superstition‚ living severed hands‚ mystery and gloomy
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Experiment1: Introduction to laboratory equipment and basic components. 1 OBJECTIVES. This experiment will provide exposure to the various test equipment to be used in subsequent experiments. A primary purpose of this lab course is for you to master the use of electronic test equipment. The devices we will be using include DC power supplies‚ breadboards‚ digital multi-meters ”DMM”‚ oscilloscope and a function generator‚ as well as some resistors‚ capacitors and inductors‚ so we can have
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can be lethal if consumed in high doses. The amount of ethyl alcohol that is consumed can be quantified by blood alcohol content (BAC). BAC is measured as weight per unit of volume and it is commonly written and described as a percentage. The percentage of blood alcohol content will indicate an individual’s level of intoxication. An individual can risk the possibility of death when their blood alcohol content ranges from 0.400% to 0.500%‚ or exceeds 0.500%. Qualitative and quantitative analysis of
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