Why are there so many blood spatter analysis classification systems?
In BPA there are various systems of classification. Each developed in its own right and each has value and function. Over time different professional groups and different teachers adopted different systems. Although on first glance it might seem as if they are disparate systems; as previously discussed inherent in all of these systems are the basic pattern types. The systems simply start from different initial perspectives. Examples of different classification systems include: LVIS, MVIS, HVIS. This system concentrates on the idea of spatter size as a principle distinction. Although well known, for various reasons associated to misuse and misunderstanding, this system is being replaced by other classification systems. Passive/Dynamic. This system is mechanistic and starts with the nature of the underlying event. Dynamic patterns are those associated to disruption mechanisms (e.g. impact, castoff, projected). Passive patterns are contact stains and patterns produced by gravity. Spatter/
