Center for Statistics and Applications in Forensic Evidence (CSAFE)"
Journal or Book Title
Journal of Forensic Sciences
Forensic examiners regularly testify in criminal cases, informing the jurors whether crime scene evidence likely came from a source. In this study, we examine the impact of providing jurors with testimony further qualified by error rates and likelihood ratios, for expert testimony concerning two forensic disciplines: commonly used fingerprint comparison evidence and a novel technique involving voice comparison. Our method involved surveying mock jurors in Amazon Mechanical Turk (N = 897 laypeople) using written testimony and judicial instructions. Participants were more skeptical of voice analysis and generated fewer “guilty” decisions than for fingerprint analysis (B = 2.00, OR = 7.06, p =
American Academy of Forensic Sciences
Garrett, Brandon L.; Crozier, William E.; and Grady, Rebecca, "Error Rates, Likelihood Ratios, and Jury Evaluation of Forensic Evidence" (2020). CSAFE Publications. 40.
Available for download on Thursday, April 22, 2021