Bloodstain pattern analysis

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    Abstract Physical evidence left behind at a crime scene plays a crucial role in reconstructing the events that took place involving the crime. Bloodstain pattern analysis (BPA) is a discipline which utilizes the sciences of biology, physics, and mathematics. Bloodstain interpretation may be accomplished by direct scene evaluation and/or careful study of scene photographs in conjunction with detailed examination of clothing, weapons, and other objects regarded as physical evidence. The location, spreading, and appearance of bloodstains and spatters can be useful for interpreting and reconstructing the events that produced the bleeding. An investigator or bloodstain pattern analyst can decipher from individual bloodstains the direction and angle…

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    A Bloodstain Pattern Expert (BPE) sustains the job of formulating a theory as to what happened on the crime scene and answering questions about it. In order to do this, the BPE relies on a type of forensic science called Bloodstain Pattern Analysis (BPA) that helps obtaining DNA testing, autopsy results, bullet trajectory, and other relevant information to the case. The purpose of this paper is to explain and direct the reader into a better understanding of what this area of forensic deals with.…

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    Bloodstain Pattern Analysis also known as BPA is defined as the diameter and shape of blood splatters, which reflects the origin and trajectory of external blood flow in the context of homicide or violent death, in which the skin surface is disrupted (Medical dictionary https://medical-dictionary.thefreedictionary.com/Bloodstain+Pattern ). The development of bloodstain pattern analysis dates back to nearly 150 years ago in history and through the years there have been many studies, developments,…

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    Essay On Forensic Science

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    Focusing specifically on forensic law, the first thing i'm going to talk about is blood splatter. According to crime scene investigator. “Because blood behaves according to certain scientific principles, trained bloodstain pattern analysts can examine the blood evidence left behind at a crime scene and draw conclusions as to how the blood may have been shed.” If you want to know what blood spatter is, it is a bloodstain pattern resulting from blood drops that traveled in the same direction as…

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    A tremendous amount of education is necessary for one to be an efficient bloodstain expert (BPE). Experience in this field is also a great tool when it comes to making the correct judgment. Experience helps an expert to determine the bloodstains that may overlap. A single crime scene may have various bloodstains patterns. This leads to the need of a BPE though it is very important to weigh in all the evidence at the scene. Some evidence includes bullet trajectories, DNA, firearms analysis (if…

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    another crime that eventually lead them getting caught as a serial killer and lastly they were turned in by someone who knew offender which discus the serial killer telling someone about who they are and that person decides to turn them in. After the study, researchers concluded that many of the serial killers were caught using several methods and not forensic science alone. Another method for capturing the serial killers is by media and publicity. When law enforcement informs the media of the…

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    Trace Evidence Importance

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    Melvin Colangelo AJS275 Butcher Words Importance and Legal Concerns of Evidence Melvin Colangelo AJS275 Butcher Words Importance and Legal Concerns of Evidence Locard’s Principle is that investigators and suspects leave and take something from every crime scene. The items that could be left behind, known as trace evidence can include hairs, fibers from clothing, and DNA to identify a few. There is also transfer evidence, which is a type of trace evidence but…

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    Waking up with a killer headache and blurry vision, Blanche knew something was wrong. She waited for her eyes to adjust to the harsh lighting before fully opening them and taking in her surroundings. There was blood everywhere! At the foot of the old wooden chair she sat in was a puddle of what Blanche could only assume to be her own blood. Seeing this she began to panic. She desperately tried pulling at the ropes around her hands, but had no luck. By now Blanche was sure it was her blood…

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    science, from blood pattern analysis, to crime scene management; however, contextual information can produce a number of different outcomes with the exact same evidence (Houck & Siegel, 2015). According to Bernstein et al (2013), contextual information can lead to the complete…

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    Blood Investigation

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    multiple piece of clothing for further analysis by using various preliminary tests and to see the rate and duration of chemiluminesence of the Phadebas paper test. Introduction To a forensic investigation blood is of unparalleled importance, it has multiple functions in a forensic investigation; The book criminal investigation (Christine Hess Orthmann, Kären Hess, 2012) states “blood assists in establishing that a crime was committed, in re-creating the movements of a suspect or victim and in…

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