The author of the article has a longstanding experience as a prison chaplain. He carried out extensive studies among a huge group of prisoners. Those studies were conducted for prison chaplain’s tasks, aimed at rehabilitation of prisoners and strongly connected with stigmatization and destigmatization of people from penitentiary. The problem’s analisys is based also on the studies on the literature and source materials, which contains also formal and legal documents, but primarily on the own observa tion caused by own participation in the whole process. Likewise, it were used some experiences of people who were related to penitentiary system. That if jailed people come back to criminal world, start to live honestly with social rules practically depends on the rehabilitation and penitentiary help. Feedback and beliefs of those people let us to know if chaplains fulfill assumed functions.