Blood Spatter Pattern Analysis - Assignment Example

Blood spatter Pattern Analysis The crime scenes indicated having varying blood stain reveal varying scenarios of blood spatter. The analysis of the blood spatters bases from basic and inherent scientific principles. The scientific principles invest heavily in the behaviour of blood as a liquid to provide lead to its source. The study of various properties of the blood spatter facilitates finding of potential cause of the bleeding. Analysis and recreation of actions that prompted the blood spatter is facilitated by a group of study into the size, distribution and shape of the blood stains that give details regarding the blood stain source. They further eliminate instances that might have not been the cause of the crime. All the fifteen cases are mainly grouped as transfer stains, Passive stains and projected or impact stains. Every spatter pattern is analyzed according to the numbers provided in the PowerPoint document (Englert & Passero, 2010). Blood spatter: 1 The blood spatter number reveals an impact spatter on the bath tub. The source of the injury was prompted by shape edge that created small or tiny opening under which blood forcefully came out projecting on the walls of the bath tub. The forceful projection of the blood possibly from the arterial damage prompted the blood to pass through small opening caused by a sharp edge of the object. The spatter shapes reveal satellites and angular elongations that show the angle on which the action took place (Parker, 2014). Blood spatter: 2 The Blood stain two reveal a transfer blood stain. The possible carrier of the blood is a piece of cloth. The stain indicates the motion of the person involved in the process. Transfer stains reveals relatively less information as compared to other blood stains since it is carried or transferred from one source to another (Parker, 2014). Blood pattern: 3 The Blood stain: 3 exhibits passive pattern that is a vertical drop. The blood drop resembles perpendicular drop. It has spines away from the door. It hence informs that the source of the blood was moving towards the door perhaps scampering. The drop is relatively large as compared to the spray drop and must have come from an oozing source. The vertical drop was prompted by gravity. Blood spatter: 4 Blood spatter: shows an expirated spatter. The blood spatter has a fine mist well spread over a large area or region. The region indicated appears to be an edge section of the larger splatter from other regions. The blood mist is derived from a mixture of air under intense pressure from the lungs or any section of the gushing air from the body like the nose or mouth. Blood spatter: 5 The Blood spatter or pattern 5 indicates void pattern of blood. It typically indicates a large flow of blood from a source. Large mass of blood was prompted by a large hole or injury on the skin. The blood path was blocked thus preventing impact spatter. The blood flowed on the surface of the floor for a long period. Blood spatter/ pattern: 6 The blood spatter: 5 reveals a passive drop pattern. The pattern originated from the main drop at centre after splashing. It reveals a very long vertical height from which it came from. The pattern could have been spine part of the main drop in case it came from the adjacent height. Blood spatter/ pattern: 7 The Blood spatter/ pattern: 7 reveals an impact splatter. The blood appears projected on the wall under high pressure in the air. It further reveals arterial spurts that indicate the intensity high intensity of the pressure causing the pattern. It has a circular pattern that shows one typical motion from the source of the blood. Blood spatter/ pattern: 8 The Blood spatter/ pattern: 8 shows a transfer pattern blood whose main source is a piece of cotton or fine material or a cloth . The blood stain is lightly exposed on the door thus revealing the motion of the person. Blood spatter/ pattern: 9 The blood spatter/ pattern: 9 reveal a passive pattern. It indicates a large pool pattern of blood that emanated from an oozing source or a dripping source of blood. From the pattern, the blood oozed from a victim who was seated on the chair. It hence created a pool at the lower area of the table. The blood was dripping under low pressure and hence clotted quickly (Parker, 2014). Blood spatter/ pattern: 10 The Blood spatter/ pattern: 10 represent a transfer pattern. The blood pattern transfer indicates a left hand imprint on the wall. It has a light indicates that reveals finger prints which can be used in tracing the person in case it was from the assailant (Parker, 2014). Blood spatter/ pattern: 11 The Blood spatter/ pattern: 11 indicate a transfer pattern caused by hand on the door knob. The person tried to open up the door while exiting or entering the room. The pattern does not expose fingerprints but can be exploited to give further details of the person. Blood spatter/ pattern:12 The Blood spatter/ pattern:12 shows an expirated spatter. The blood spatter has very fine mist well spread over a large area or region. The blood spots are derived from small and tiny particles that were carried away by air . They are minute and nearly microscopic. The blood must have been carried by air following mixture by gushing air from the lungs (Englert & Passero, 2010). Blood spatter/ pattern: 13 The Blood spatter/ pattern: 13 reveals passive blood pattern. The blood oozed and flowed due to gravitational pull on the tank to the base of the tanks. The blood strips indicate the motion of clotting blood along the line downwards. Blood spatter/ pattern: 14 The Blood spatter/ pattern: 14 reveals passive flow pattern of blood on the pillow. Pillow absorbed most of the flowing blood and there is no accumulation of the pool of blood. Blood spatter/ pattern: 15 The Blood spatter/ pattern:15 indicates very fine expirated spatter of blood. The tiny endpoints of shiny luminol in the sink indicate microscopic blood stains. The blood was expirated from a source at relatively far away from the sink but suspended in the air (Englert & Passero, 2010). In conclusion, the blood stains reveal extensive application of three groupings that are notable in the blood patterns. They include passive, transfer and impact splatter. The groups have been further grouped into fine segment as applied in the whole process. References Englert, R., & Passero, K. (2010). Blood secrets. Sydney: Pan Macmillan Australia. Parker, N. L. (2014). Crime scene bloodstain pattern analysis workbook. S.l.: Authorhouse. Read More