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SUMMARY:On activity level propositions addressing the actor or activity - 
 Charles Berger (Ministerie van Veiligheid en Justitie)
DTSTART:20160927T083000Z
DTEND:20160927T091500Z
UID:TALK67606@talks.cam.ac.uk
CONTACT:INI IT
DESCRIPTION:Bas Kokshoorn\, Bart Blankers\, Jacob de Zoete\, <u>Charles Be
 rger</u><br><br>More often than not\, the source of DNA traces found at a 
 crime scene is not disputed\, but the activity or timing of events that re
 sulted in their transfer is. As a consequence\, practitioners are increasi
 ngly asked to assign a value to DNA evidence given propositions about acti
 vities provided by prosecution and defense counsel. Given that the dispute
  concerns the nature of the activity that took place or the identity of th
 e actor that carried out the activity\, several factors will determine how
  to formulate the propositions. Determining factors are (1) whether defens
 e claims the crime never took place\, (2) whether defense claims someone o
 ther than the accused (either an unknown individual or a known person) per
 formed the criminal activity\, and (3) whether it is claimed and disputed 
 that the suspect performed an alternative\, legitimate activity or has a r
 elation to the victim\, the object\, or the scene of crime that implies a 
 legitimate interaction. Addressing such propositions using Bayesian networ
 ks\, we demonstrate the effects of the various proposition sets on the eva
 luation of the evidence.&nbsp\;<br>
LOCATION:Seminar Room 1\, Newton Institute
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