Discussion Document DNA Activity Expert Meeting

NRGD acknowledges that forensic practitioners are being increasingly requested by the Courts in the Netherlands to evaluate DNA evidence using propositions at the Activity Level – a reference to a step in the recognised Hierarchy of Propositions4. Activity Level reporting requires a consideration of the issues surrounding DNA transfer, persistence, prevalence and recovery by using available data and subjective opinion to assign probabilities for observing the evidence if the alternative propositions were true. At present NRGD only provides a practitioner standard for reporting DNA profiles at Source Level.