Another important point regards the fact that the presence of possible culprit polymorphisms has not been investigated in all the population of criminal convicts, hence, there is no evidence
whether they should be considered as valid for sentence reduction in these particular cases in which they were advocated. Furthermore, if it was proved that these same aggressivity/impulsivityrelated polymorphisms are present also in other convicted people
as well, whose lawyers failed to ask for sentence reduction, if sentenced, these convicted people may a posteriori claim sentence reduction such as those obtained in the above-mentioned cases. This would multiply the output of legal cases unnecessarily and increase further the social cost of crime.