Postpenal reception is an important tool in crime prevention because it includes procedures vital for a successful reintegration and resocialization of defenders. These procedures help defenders live free and in accordance with social norms and they start upon the arrival of a convict in a prison or a penitentiary and continue upon leaving the institution. The stated support is particularly important for addict defenders because not only they represent the most demanding group in terms of treatment and safety but they also struggle with double stigma: being perceived as a violator of social norms and as an addict. The purpose of this paper is to give insight into domestic and foreign literature that details the general features of addict defenders as well as the association between the occurrence of addiction and involvement in criminal behavior. The paper explains the cooperation of key participants in preparing the release of prisoners and implementation of postpenal admission in which the probation offices have the main role. Apart from that, the paper enlists a few examples of good practice of postpenal reception in Croatia implemented by civil society organizations. Within postpenal admission, the position and possibility of social reintegration of addict defenders is being particularly observed because of their pronounced stigmatization and severed social ties with the immediate and wider community.