Bloodstain Pattern Analysis || Questions and 100% Accurate Answers.

What is the definition of 'Bloodstain Pattern Analysis'? correct answers Examination of the location, size, shape and distribution of bloodstains, using science to provide information on the events that resulted in the deposition of bloodstains. What does the acronym 'SWGSTAIN' stand for? correct answers Scientific Working Group on Bloodstain Pattern Analysis. What is the role of SWGSTAIN? correct answers Group of BPA experts from across the world that discuss and evaluate methods, techniques, protocols and research to develop guidelines of best practise for BPA. What are the (7) roles qualified to do as a BPA analyst? correct answers 1. On-call roster. 2. Only asses bloodstain evidence at crime scene. 3. Perform presumptive testing of blood. 4. Peer-review interpretations by/as second analyst. 5. Prepare statements 6. Testify in court 7. Instruct evidence recovery staff What is involved in the first level of training as a BPA analyst? (1) correct answers Identification of bloodstains. What is involved in the second level of training as a BPA analyst? (3) correct answers Identify and document patterns and mechanisms, estimate direction of travel and angel of impact. What is involved in the third level of training as a BPA analyst? (4) correct answers Interpret complex patterns, determine and reconstruct sequence of events, estimate origin of impact and testify in court. What information (5) is to be gathered from a crime scene in terms of documenting bloodstain patterns? correct answers 1. Address of the crime scene. 2. Who requested BPA analyst to attend scene. 3. Who is/has been present at the scene - e.g. paramedics to preserve life before death (can affect pattern analysis and evidence, bloody footprints). 4. Time and date arrived and left the scene. 5. Rough sketch of the house - detail wherever blood is present. What is hemastix and a disadvantage? correct answers Plastic strip with a blood reagent material at the tip. The reagent coated tip will turn green if haemoglobin is detected. Disadvantage: can affect DNA analysis. What characteristics (7) should be documented about blood stain patterns at a crime scene? correct answers 1. Number of blood stains 2. Size range