Blood Pattern Analysis

Running head: BLOOD PATTERN ANALYSIS
Blood pattern analysis
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BLOOD PATTERN ANALYSIS
Question 1(a):
Blood pattern analysis:
Blood pattern analysis is a crucial process of forensic discipline which deals with the
physics of blood for assisting in the investigation of a crime scene (1). In the current context,
there are five possible locations of the blood pattern can be observed.
1. 60 cm baton by which the crime was done
2 And 3. The next two locations are two corners of the wall where the blood was splashed after
criminal hit the victim if the criminal hit victim in a projectile manner.
4. The next location is the corner of the room where blood was possibly dropped from the head
wound or from the baton.
5. The next location would the corner of the house where the body was lying after the wound.
1. Baton:
Since the force of gravity was used to hit the victim by the baton, passive spatter can be
found where swipe pattern would be created from the baton leaving a bloodstain in the vertical
direction (2). In this case, since the multiple wounds were found in the victim’s head, multiple
sizes of over lapped bloodstained can be found with the and few spine patterns can be found due
to the spatter (5).
2 and 3: two sides of the wall :
When the baton was used for hitting the victim, in the projectile manner blood was
spattered from the baton in the forwarding direction and cast off stain can be found in the left and

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BLOOD PATTERN ANALYSIS
right wall of corner of the room where the body was found. The projected blood pattern can be
high impact and it would be drip if the blood falls in the linear direction from two walls or each
of the wall, the blood stain will have a long tail of approximately 30 degree and the tail of the
elongated drop points to the travel direction (2). Expiratory blood can came out of the wound of
the head. Swiped pattern with the collection of blood deposited in surfaces can be found in the
wall if the hands are in contact with the blood and made impression on the walls (4).
Figure: blood pattern with tail
Source: (4)
4. Ground where blood spatters from the baton:
Impacted blood stain can be found in the different places of the ground where the blood
spatters from the baton or wounded head in the ground. It often displays numerous and relatively
small stain sizes which can be 80-degree angles take on a more elliptical shape (1). The similar
size of the droplet (spurt) can be found with the distance between them. No mist, small drops,
cylindrical droplets with no possible direction can be found.