PPT-BLOODSTAIN PATTERNS BLOOD COMPONENTS

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. MULTIPLE INVESTIGATION AND BLOODSTAIN ROOMS SPECIAL ROOMS FOR CHEMICAL BLOOD SEARCH AND ENHANCE TECHNIQUES Loci Forensics BV Haverstraat 44 2153 GB Nieuw Vennep The Netherlands brPage 2br Bloodstain pattern analysis BPA is defined as the examination 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 . 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). 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?. elements-Cells . Erythrocytes (RBCs). Leukocytes (WBCs). Thrombocytes. (platelets. ). Plasma. 90% water. 10% solutes. Proteins, clotting factors. 1. What can we give?. Whole blood. Packed RBC (PRBC). Bloodstain Pattern Analysis Terms. Spatter. – Bloodstains created from the application of force to the area where the blood originated.. Origin/Source. – The place from where the blood spatter came from or originated.. :. This unit will cover the various body systems that can be used for forensic identification in various criminal investigations.. Body fluids. Topics covered will include: blood, blood typing and identification and blood splatter analysis. What can an investigator learn from the analysis of a blood spatter?. Type and velocity of weapon. Number of blows. Handedness of assailant (right or left-handed). Position and movements of the victim and assailant during and after the attack. Why to Irradiate blood. Transfusion Associated Graft versus Host Disease (TAGVHD). Indications of Irradiated Components. Shelf Life of Irradiated products. Methods of Irradiation. Contents. For Prevention of . “There is a brief but very informative biography of an individual contained within the skeleton, if you know how to read it…”. . —. Clyde Snow, Forensic Anthropologist. Autopsies. Performed by a pathologist. Erythrocytes (RBCs). Leukocytes (WBCs). Thrombocytes. (platelets). Plasma. 90% water. 10% solutes. Proteins, clotting factors. 1. What can we give?. Whole blood. Packed RBC (PRBC). Platelets. Fresh Frozen Plasma (FFP). SFS3 Students . will analyze the use of toxicology, . serology. , and DNA . technology in . forensic investigations. . d. . Differentiate the forensic techniques used to distinguish human and . animal .