The aim of this study is to gain insight into professional`s experiences of interdisciplinary collaboration between the municipality and the forensic ward. The study was intended to contribute to an increased understanding of the professional`s experiences of what is considered to work and what is considered to lack in the interdisciplinary collaboration between the municipality and the forensic ward. The study`s empirical data was obtained through eight semi-structured interviews with five social workers from the social services and three counselors`s at the forensic ward. National and international previous research in interdisciplinary collaboration that was relevant for my study has been obtained. For the analyze I combined previous research, the result from my interviews and my theoretical framework. Conclusions show that the professionals believe that communication between social services and forensic psychiatry is good and that both parties focus on the individual patient. Conclusions also show that insufficient knowledge regarding the organizations, work areas, responsibility, and resources and that the legislation is different. All the interviewees have a wish to improve and develop the collaboration between them.