Starting inside to stay outside: Prison, probation and municipalities work together to improve the reintegration of prisoners In eleven experiments in Dutch prisons case managers, probation officers and municipality-counselors work together to realize sustainable, integral, continuous reintegration trajectories for detainees. Results show that physical presence of the probation officers in prison improved quick and regular consultation with case managers and other professionals in prison, availability of more and broader information about the detainee, and better preparation for life after prison. Facilitators who supported working and learning together contributed to the co-creation of a new way in organizing the reintegration process in prison. This kind of co-creation requires manpower and resources. [ABSTRACT FROM AUTHOR]