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Applying calibration to LRs produced by a DNA interpretation software

NCJ Number
Australian Journal of Forensic Science Dated: 2019
Date Published

Ramos and Gonzalez-Rodriguez introduce the concept of calibration in order to determine whether a system of evidence presentation is a reliable assessor of evidential weight.


This calibration method was applied to a dataset of mixed forensic DNA profiles generated using the QIAGEN Investigator® 24plex QS Kit and interpreted using the probabilistic genotyping software STRmix™. The article describes the methodology for applying calibration to sets of forensic DNA profiles. The authors observed an approximate correspondence of the posterior probability, as assigned from the LR and the prior odds, with the observed rate of true donors for this dataset. (publisher abstract modified)

Date Published: January 1, 2019