5thEuropeanIABPAconferenceFinal programm

The 5 th European
Internaonal Associaon
of Bloodstain Paern Analysts
(IABPA) Conference
Rome 2015
Calculating the coordinates of the area of convergence
by using high school mathematics
Ludo Verbeek ‐ Dutch Naonal Police
Abstract
In 2011 an impact pattern was found on
uneven and sloping walls on a homicide
scene. Unfortunately the current methods
are not suitable on uneven and
sloping walls. The last few years I have
developed a model, which allows for the
calculation of the coordinates of the
area of convergence, which could potentially
solve this gap. In this new
model the area of convergence is calculated
by using the distance between
multiple bloodstains and the angles
between the lines through the long axis
of the bloodstains. By combining the
coordinates with the angle of impact of
the bloodstain, investigators are now
able to calculate the coordinates of the
area of origin. If you measure the angle
between the line through the long axis
of the bloodstain and the plum line, it is
possible to calculate the coordinates of
the selected bloodstains. The calculated
coordinates can be used to calculate the
coordinates of the intersection of lines
through the long axis of the bloodstain.
Biography
Ludo Verbeek (1978) has a Bachelor degree in
Human Kinetic Technology from the The Hague
University of applies sciences. Ludo Verbeek is
a senior forensic investigator, crime scene coordinator
and bloodstain pattern analyst for the
forensics department of the Dutch National
Police, unit The Hague. In 2007 Ludo started
working as a Senior Forensic Investigator, during
his training as a Senior Forensic Investigator
he developed an interest in Bloodstain pattern
analysis. In 2011 he attended a bloodstain
analysis course at Loci Forensics. During the
last four year Ludo has preformed multiple
bloodstain pattern analysis.
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