Forensic Science: Bloodstain Pattern Analysis

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Introduction Bloodstain pattern analysis (BPA) is one of many specialties in the field of forensic science; the science of bloodstain pattern analysis use scientific knowledge from other fields to solve problems. BPA also uses the scientific method to examine bloodstain evidence at a crime scene where blood is present by gathering information, observing, documenting, analyzing, evaluating, and technical or peer reviewing. A bloodstain pattern analysis job is to collect, categorize and interpret the shape and distribution of bloodstains within a crime scene (Peschel, 2011). Bloodstain patterns can reconstruct a crime scene and then determine the crime as an accident, homicide, or suicide; the blood can also identify the location, quality and intensity of an external force. The purpose of a BPA’s is to determine bloodstain patterns and to recreate the action that caused the blood. Locard’s Principle The Locard’s principle is important in any forensic science field, “the principle holds that the perpetrator will take away traces of the victim and the crime scene; the victim will retain traces of the perpetrator and may leave traces of himself or herself on the perpetrator; and the perpetrator will leave traces of himself or herself at the crime scene in many ways” (Geberth, 2007). The Locard’s principle in BPA is applied in the retrieval and evaluation of bloodstain pattern evidence. Classification of Bloodstain Patterns In order to reconstruct a crime scene, analysis must classify the bloodstain spatter, and there are many way to classify blood stain patterns: bloodstain spatter by velocity and bloodstain through taxonomy. In the classification of the bloodstain spatter by velocity, there are three basic categories of stain groups... ... middle of paper ... ...me scene, by recreating the scene using the blood direction a bloodstain patterns. Bloodstain pattern analysis use biology, chemistry, math, and physics to solve a crime. In doing research on this topic there is a lot of detail to go into this topic, so in suggestion this paper need to explain the other different investigators that process any crime scene. Personal Evaluation References Forensicsciencesimplified.org. (2014). Bloodstain Pattern Analysis: Introduction. http://www.forensicsciencesimplified.org/blood/ Geberth, V, (2007). Bloodstain Pattern Analysis. Law and Order, Vol. 55, No. 3. http://www.practicalhomicide.com/Research/LOmar2007-2.htm Peschel, O., Kunz, S. N., Rothschild, M. A., & Mützel, E. (2011). Blood stain pattern analysis. Forensic science, medicine, and pathology, 7(3), 257-270. http://link.springer.com/article/10.1007/s12024-010-9198-1

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