Blood Splatter

The acute angle formed between the direction of blood drop and the plane of surface it strikes.

Blood splatter resulting from blood drops released from an object due to it's motion.

Blood pattern caused by a high velocity impact/force to a blood source.

Blood pattern caused by a low impact blood source. Such as a cut that drips.

What type of blood spatter pattern is shown here?

• Terminal velocity

• High velocity

• Medium velocity

• Low velocity

What is the angle of impact of this blood spatter drop?

Mathematical Equivalence

ON

A blood spatter analyst conducted an experiment to see if the height at which blood drops affect the diameter of the blood spatters. Below is a graph of their data with a line of best fit to show the trend. The next week the analyst was called into a crime scene where there were passive blood spatters that averaged 20 mm in diameter. The analyst used their experimental data to determine the blood likely fell from a height of ________________.

• 160 cm 

• 160 mm 

• 13 mm 

• 180 cm 

• 13 cm 

Tags

NGSS.MS-PS3-1

Identify the blood spatter drop that came directly from above (90°).

This is an example of _______ BSPA.

• drop in a drop

• large volume

• cast off

• arterial

Identify the blood spatter that came from the highest height.