Rationale, aims and objectives
This study presents for discussion the possibility of adopting a hypothesis of absolute truth in forensic serology and DNA testing of biological traces, taking into account identification probability, which is usually assumed to be greater than 95%. Can this be so? Established identity and mathematically calculated probability below this rate is not false because it depends on the sensitivity of the method, the possible number of variations and theoretical combinations. The result from a study can be considered a 100% identification result only if this study takes account of absolutely all quantitative criteria that characterize it.