Saturday, November 2, 2019

Discussion Board Question for criminal justice Assignment - 3

Discussion Board Question for criminal justice - Assignment Example . (Saferstein, 2011). The assessment of bloodstain pattern also limits the need to collect a lot of redundant blood sample for DNA testing, emphasizing importance of blood patter observation. (Ramsland, n.d). Shape of blood stain can help predict the tool used. For example, it may be deduced that it was a blunt instrument used just by shape and distribution of blood patterns.(Dave, 2014).Features of the pattern can hint to the kind of object that formed it and the least number of blows delivered by the object. For instance, the characteristic spurts present in an arterial spray spatter are created by the ongoing pumping of blood from an arterial injury. ( Saferstein, 2011) Surface texture can significantly affect the outline of bloodstain. The texture of the surface is related with the disruption of a blood drop on contact with the surface. .( Saferstein 2011).Smooth surface for instance glass, will provide a stain with clean edges and shapes of proper geometric ratio.  A rough surface on the other hand, say concrete, will break the surface tension irregularly and hence produce a star burst. .( Saferstein, 2011) Nevertheless, circular blood drops imply that the murder was moving way at a slow speed, but spiny edges imply the murderer might have took off running.( Dave,2014) Various types of bloodstains show how the blood was projected from the body and information like type of injury, order in which the wounds were received, and how far the blood drops fell before hitting the surface where they were found could be obtained. (Ramsland,n.d ) Flow pattern of the blood stains can also give information. For instance, if the pattern suggests the flow was interrupted, it may be helpful in assessing the sequence and time past between the flow and its interruption. . ( Saferstein ,2011) Moreover, because the direction of flows is caused by

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