Way to Express an Expert Evidence in Paternity Testing

Overview

Non-exclusion from paternity of alleged man can be quantified by pre-test and post-test parameters. Authoradvocates the view that expression of the power of forensic expert evidence by likelihood ratio, which comparesprobability of data under two hypotheses, is the best approach from both the point of forensic mathematics andjudiciary practice. Advantage of likelihood ratio is described and demonstrated on microsatellite typing examples.

Key words:
paternity testing, likelihood ratio, Bayes theorem.