Forensic Speaker Comparison Using Machine and Mind

A correct logically coherent framework uses a likelihood ratio framework for dealing with the evaluation of the forensic analysis at hand (Morrison, 2012). In Sweden, the National Forensic Centre (NFC 1 ) has implemented a verbal scale where spans of likelihood ratios are applied to each step in a 9-point ordinal scale (Nordgaard et al., 2012), similar to the verbal scale suggested by Champod and Evett (2000).