Abstract
The previous criminal behavior included in the PCL-R like a criterion to evaluation of the psychopathy in the prisons, suppose that individuals considered as psychopaths in the community for their personality were not detected when they arrive to prison. The aim of this research was to establish the different profile of the undetected psychopath in comparison with criminal psychopath in the familiar, educative, substance abuse and criminal environments. The sample was made up of 352 prisoners evaluated with the PCL-R. Results revealed that undetected psychopath showed the same personality but different lifestyle than criminal psychopath. Moreover, undetected psychopath accounted with moderating variables during his development that avoid them committing criminal behavior. Finally they did not show a criminal lifestyle, however, as the same as a criminal psychopath, they had the capacity to commit serious crimes being their victims their relatives or couples.
