Blood Splatter
Forensic Scientists use blood or blood splatter patterns to help solve crimes, especially violent ones.
How does blood pattern angles (BPA) help the forensic scientist solve crimes?
Bloodstain samples can be collected for BPA by cutting away stained surfaces or materials, photographing the stains and drying and packaging the stained objects/ evidence. When people collect bloodstains they usually use tools who have high quality cameras, sketching materials, cutting materials and evidence packaging.
Types of blood stain patterns?
It has been classified by three basic types: Passive stains, Transfer stains and projected/ impact stains.
Passive stains can involve drops, flows and pools. It can also include typical result from gravity acting on an injured body. Transfer stains can be outcome by coming into contact with existing Bloodstains and leaving wipes swipes or pattern transfers behind such as a bloody shoe print or a smear from a body being dragged.
Impact stains result from blood projecting through the air. They are usually seen as splatter but may also include gushes arterial spurts and splashes.
Include relevant pictures
Relate to type of crime that caused them
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