In this study, religiosity in prison is investigated. What opportunities are there for those detained to practice their religion and how did their religiosity change after they were detained? Six interviews were conducted to gain a better perspective of religiosity in prison. The focus is on Correctional Institution in Kalmar, where surveys have been conducted over a longer period but also the monastery at the Correctional facility in Kumla is discussed. Most interviews were conducted in the prison of Kalmar, in a room where religious conversations are conducted.