Forensic serology
Victoria White
Dennis Brauner-McLaughlin
History
1901 karl Landsteiner
-Discovered blood typing A B O system
-Earned the noble peace prize in 1930
1937 Rh Factor Demonstrated if the typing was positive
or negative.
-Presently more than 100 factors apply to the classing
today!
Since 1990 forensic scientist have relied on blood
characteristics to cl pick out individual suspects or
victims.
Good things
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Blood caries DNA which is to an own
individual
Blood is in all bodily fluids
Blood traces can be so small but carry vital
amounts of DNA at a crime scene.
BPA
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Bloodstain Pattern Analysis is one several
specialties to a serologist. This is not new
,however, it has been improved through
breakthroughs in modern DNA analysis.
There are patterns such as:
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Passive Drops
Drip Pattern
Flow Pattern
Pool Pattern
Passive and Drip
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Passive-created by the force of gravity alone
Commonly used as trails from victim to exit or
attacker
Drip- Results from blood dripping into blood
Commonly found below victim near a pool of
blood
Flow and Pool
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Flow-A change in the shape and direction due
to gravity or object movement.
Commonly found along walls
Pool- A pattern formed from blood that is
stationary for a long time.
Commonly found in large masses.
Ties to other forensics
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Ballistics are used to determine how the blood
splatter was made.
Biology to determine DNA pattern in Blood
Chemistry to determine any toxins in the
blood.
Education
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Serologist need all around education but
majoring in Biology or BioMed.
LAB
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Blood spatter lab- we try to find the angle from
witch our “victim” was hit from. We will set
up a dummy with pumping blood to act as our
victim. When we hit it with the weapon the
blood splatter projectile will help determine
the angle. The thickness of the spatter is also
depends on the weapons weight and size this
lab will help determine that.
End
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Thank you for reading…