PDF-blood spatter

FSB 09 Room plan room The crime scene investigators determined that the bloodstain patterns on the 147stove148 wall were suitable for analysis To enable you to analyse these bloodstains a. Blood pressure normally rises and falls throughout the day but it can cause health problems if it stays high for a long time High blood pressure can lead to heart disease and strokeleading causes of death in the United States Are you at risk One in WARNING. Contains graphic images. Angle of Impact. The acute angle formed between the direction of a blood drop and the plane of the surface it strikes. . Arterial spurting (or gushing) pattern. . Bloodstain pattern(s) resulting from blood exiting the body under pressure from a breached . Glass . Blood. Laminated Glass . Laminated Glass is made up of a vinyl laminate (PVB) layer bonded together between two panes of glass under heat and pressure. Laminated glass may crack upon impact, however the glass fragments typically stick to the protective inter-layer rather than falling free and potentially causing injury. It breaks exactly like the windshield of your car, cracks but is held in place by the vinyl laminate layer.. The success or failure of any criminal investigation often depends on the recognition of physical evidence left at a crime scene and the proper analysis of that evidence.. Crime scenes that involve bloodshed often contain a wealth of information in the form of bloodstains.  The pattern, size, shape, and the location of such stains may be very useful in the reconstruction of the events that occurred. . Chapter 8. Blood Spatter . #1…it’s not “. splatter. ”! . . Properties of blood affect pattern:. Fairly . high surface . tension (cohesion). Very . viscous. Sticky-adheres . to external . surface (adhesion). Bloodstain Science. Warning: Some material in this presentation and related videos may be too graphic for some people. . What . does the abbreviation BPA represent? . Bloodstain Pattern Analysis. What can an investigator learn from the analysis of a blood spatter?. Bits and pieces…. Use of force to describe the blood spatter. In the past, forensic investigators used ‘velocity’ to describe a pattern of blood dispersion. . Low . velocity (gravity/drop, 5ft/s) . Bloodstain Science. T. Trimpe 2006 http://sciencespot.net/. Warning: Some material in this presentation and related videos may be too graphic for some people. . What . does the abbreviation BPA represent? . Class Starter: . What are the different blood types that exist?. What determines what type of blood you have?. Why can you die if you were to receive an incompatible blood type?. What determines the different blood groups?. 1. What type of bloodstain?. 2. What type of blood stain?. 3. What type of blood stain?. 4. . . What type of blood stain?. 5. What type of blood stain?. 6. What type of blood stain?. 7. type of blood stain?. SFS1. Students will recognize and classify various types of evidence in relation to the definition and scope of Forensic Science.. SFS2. Students will use various scientific techniques to analyze physical and trace evidence.. Blood Stain Evidence. Bloodstain patterns can help investigators reconstruct events in a crime scene.. Analysis of the blood stain can tell whether it is animal or human.. Projected blood stains are called . count). Experiment:. Introduction. :. A . complete blood count.  (. CBC. ) is a test  that gives information about the cells in a patient's blood. . Important. .  To understand this test, it is important to know that the blood generally consists . a.k.a. Forensic Serology. Sources. www.crosscuttingconcepts.com. Forensic Chemistry by David E. Newton. Infobase. Publishing; 2007 . Take out your notebook and copy the following questions. Provide a short answer. .