PPT-Bloodstains Directions: Identify each type of blood stain/spatter pictured

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. Staining total protein before specific protein de tection techniques provides an assessment of protein transfer efficiency and makes it possible to detect contaminating proteins in the sample and to compare the sample with molecular weight standards 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.. . By : Cyndreka Lindsey. CHEM-4201. 11/20/2014. Outline. Background. Spatter Analysis. Blood Patterns. Common Tests. Writing Assignment. Questions. Background. Before blood analysis detectives had to relay on their instincts and criminal confessions to solve a crime. 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. . Griffin. Bloodstain patterns. The patterns left by falling, projected, or smeared blood can help the forensic investigator interpret and reconstruct what has happened at a crime scene.. Observation of the position and shape of stain patterns can give information such as:. 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). Practical Hematology Lab. Making Blood Smear. - LAB 1 -. I- Preparation Of Blood Smear. There are three types of blood smears: . The cover glass smear.. The wedge smear .. The spun smear.. The are two additional types of blood smear used for specific purposes. Directions: Identify each type of blood stain/spatter pictured. 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?. 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) . .. The presence of color gives the cells significant contrast so are much more visible. . Different stains have different affinities for different organisms, or different parts of . organisms. They are used to differentiate different types of organisms or to view specific parts of organisms. October . 14, 2014. Points of origin and convergence. The source of blood spatter can be localized by following the direction of travel of several stains.. Direction of trave. l . The narrow end of an elongated . 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.. I- Preparation Of Blood Smear. There are three types of blood smears: . The cover glass smear.. The wedge smear .. The spun smear.. The are two additional types of blood smear used for specific purposes. tissues, cells, cell components, cell contents, or microorganisms.. *The stain may be . natural or synthetic. . . *The object stained is called the . substrate. . . *Staining facilitates the observation of a substrate by introducing .