PPT-Blood Spatter Patterns

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 gravitydrop 5fts . General Info gained from bloodstain pattern analysis:. 1. the direction the blood originated from. 2.the angle that the blood drop struck a surface. 3. location/position of a bleeding individual at a crime scene. 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.. . J. ason . Smith. The Software Revolution, Inc. .. b. ased on UNC PhD work, and . “Elemental Design Patterns”, Addison-Wesley, 2012. Decorator (GOF). Used to extend behavior dynamically, at run time. An architectural pattern is . is a package of design decisions that is found repeatedly in practice,. has known properties that permit reuse, and. describes a class of architectures. Patterns are found in practice, not invented, they are discovered.. Blood spatter . 1939—spatter . patterns first . analyzed. Blood may . spatter . when a wound is inflicted. Blood . spatter . pattern—a grouping of blood stains. Patterns help to reconstruct the events surrounding a shooting, stabbing, or beating. Spatter Definition. What is impact spatter?. A blood stain produced when an object makes forceful contact with a source of blood, projecting blood outward from the source.. Why do we care?. Why is impact spatter important?. Spatter Definition. What is impact spatter?. A blood stain produced when an object makes forceful contact with a source of blood, projecting blood outward from the source.. Why do we care?. Why is impact spatter important?. 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?. 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? . 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?. 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 . Plasma. fluid portion of normal . unclotted. blood . red blood cells, white blood cells, and platelets are suspended in it. BLOOD COMPONENTS. Serum. liquid portion of clotted blood. SURFACE TENSION OF BLOOD. Chapter 12. I. Pedigree. Graphic representation of genetic inheritance. (Look at Fig 12.1 and 12.2). I. Pedigree. Circle = female. Square = male . Shaded = shows trait being studied. Half Shaded = Carrier. 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. .