BPA can be used to determine:
movement and direction of the object or persons shedding blood
placement of objects or persons while shedding blood
movement after bloodshed
object used to create a certain pattern
the direction a stain was moving when it was deposited
origin of an impact spatter
minimum number of blows during an incident
sequence of events
weather it was homicide, suicide or accidental
position of victim during bloodshed
BPA is important form of crime scene analysis and forensic science. Not all law officers at the crime scene will have training this area of criminology. This field of forensic science requires lots of education and training to be an effective investigative technique. BPA includes different types of science disciplines of biology, chemistry, math and physics.If a scientific process is used correctly then this applied science can be used as strong, solid evidence, meaning it can be an effective tool for investigators. Even a basic understanding of BPA can help first responding officers to help in correctly collecting data from bloodstains at the scene. BPA is an important part of CSU work but is the hardest to use. BPA is used to figure out how someone was killed and sometimes why they where killed. it can tell you what you need to know about what happened when the crime was talking place. Blood spatter analysts try to recreate the spatter so they can figure out the object used to kill the person. they create their own spatters with objects that make similar spatters and compare them to the one at the crime scene, this tells them what object was used, how hard they where hit and how many times they might have been hit. BPA can also tell them if it was suicide, murder or accidental. Even if someone try's to get rid of the blood they can use luminal to find the blood and they can still use it to help them figure out what happened.