Bloodstain Pattern Analysis is a very important discipline in criminal investigation studies.
Lu Chuan had studied it when he was in college.
However, the knowledge learned at school was relatively superficial, and without practical support, many theoretical concepts could not be applied in practice.
Moreover, in the resolution of actual cases, Bloodstain Pattern Analysis often requires some experimental support.
The skill card awarded to Lu Chuan by the system included most of the content.
The bloodstain from a drip can provide information on the volume of blood, the height from the bleeding point to the surface upon which it fell, based on the size and shape of the stain.
Combined with the extraction of blood DNA information, a substantial amount of information about the scene can be obtained.
For example, the bloodstain that Lu Chuan discovered appeared in a relatively regular circular shape, with fewer spines around it.
