-52 prisoners may shed a light on the culture within the prison. Remaining in a department or wing for a sufficient period of time allows NPMs to watch daily procedures and operations, security measures and practices and to get an impression of the culture, climate, as well as of whether and how safety, security and good order are ensured in practice. These observations may also give monitors a good idea of the relationships between staff and prisoners, but also between members of staff and among prisoners themselves. 4.3.2. Interviews Interviews with prisoners and staff, including management, can be considered as the main source for NPMs to find out about violence in prison, including structural and cultural violence. A talk with the prison head could be the start of every visit, especially to inquire about specific up-to-date information or to engage in a discussion on current challenges or latest relevant news. NPMs may ask questions aimed at finding out more about the attitude, leadership and dynamics between staff and management. For interviews with prisoners, but also with staff, it is important to create an atmosphere in which the interviewees feel safe and comfortable enough to talk about their situation. It is therefore necessary that the interview room is chosen carefully to keep others from overhearing what is being said and avoid interruptions. It is also important for monitors to show that they are ready to listen and clearly interested. It may help to repeat what was heard, but not to judge. Acknowledging the feelings of the interviewee and asking open or clarification questions about the prisoners’ viewpoint will further encourage the interviewee to speak about his prison experience. Interrogation-like questioning should be avoided, as well as complicated descriptions and questions. The NPM should also consider using interpreters. Another possibility to acquire information from prisoners are group discussions. Such tool may be useful especially to find out more on general prison conditions and the quality of prison life. NPMs should be attentive