A Bloodstain Pattern Expert (BPE) sustains the job of formulating a theory as to what happened on the crime scene and answering questions about it. In order to do this, the BPE relies on a type of forensic science called Bloodstain Pattern Analysis (BPA) that helps obtaining DNA testing, autopsy results, bullet trajectory, and other relevant information to the case. The purpose of this paper is to explain and direct the reader into a better understanding of what this area of forensic deals with. Education and training of a BPE and directionality of blood spatter, as well as its proper documentation, are some of the outcomes that will be later explained in future sections of this paper.
BPE education and training
Given the fact that the majority of their work is related to blood and its behavior, a bloodstain pattern expert should have a good amount of knowledge on anatomy and biology. Also, significant knowledge in areas such as physics, math and geometry are required since part of the job is to analyze the projections of the blood after it leaves the body. However, requirements vary depending on the agency. Some BPEs can be forensic technicians with advanced training while others might have medical background. Generally, a bachelor’s degree in criminology is required, but if not, the applicant must receive proper …show more content…
Examples of gravity action include blood flow, volume, and drops. On the other hand, secondary contact includes interaction between a person or object and the blood on the crime scene (Peschel, O., 2011). This contact will later create a type of transfer patterns that may be classified between motion or non-motion stain patterns. The non-motion patterns are created when objects (e.g. shoe) come in contact with the blood on the scene and then leave a bloody print. Moreover, the motion patterns are caused by blood swipe and blood wipe on the crime
BPE education and training
Given the fact that the majority of their work is related to blood and its behavior, a bloodstain pattern expert should have a good amount of knowledge on anatomy and biology. Also, significant knowledge in areas such as physics, math and geometry are required since part of the job is to analyze the projections of the blood after it leaves the body. However, requirements vary depending on the agency. Some BPEs can be forensic technicians with advanced training while others might have medical background. Generally, a bachelor’s degree in criminology is required, but if not, the applicant must receive proper …show more content…
Examples of gravity action include blood flow, volume, and drops. On the other hand, secondary contact includes interaction between a person or object and the blood on the crime scene (Peschel, O., 2011). This contact will later create a type of transfer patterns that may be classified between motion or non-motion stain patterns. The non-motion patterns are created when objects (e.g. shoe) come in contact with the blood on the scene and then leave a bloody print. Moreover, the motion patterns are caused by blood swipe and blood wipe on the crime