[A method to calculate the plausibility of paternity using blood group results of any relatives (author's transl)].

A calculation program is described by means of which the frequency of any type of relationship in cases of disputable descent (questionable partenity, maternity, parenthood, brother- and sisterhood) using blood group results, can be calculated. Within the scope of forensical practice, the program is above all important in cases in which the alleged father and/or mother of the child is deceased, where however, blood group results of other relatives are at disposal, and also in cases of suspected incest - when the alleged father of the child is at the same time father or brother of the child's mother, and, finally, in cases where two men who are related to one another are considered as possible fathers. The program can also be applied to search cases.