text: In forensic casework the probability of a match which is based on the profile frequency is evaluated using different methods which are recommended by national guidelines, e.g. the augmented counting method with confidence intervals or theta correction ((SWGDAM Interpretation Guidelines for Y-Chromosome STR typing by Forensic Laboratories in the USA), the kappa inflation method (Brenner 2010), and the Discrete Laplace method (Andersen et al. 2013) as recommended in Germany.