1. Methodology In all the establishments visited, the NMPT operates based on the same methodology. The first stage is to establish the composition of the visiting group. In accordance with the OPCAT provisions, experts of national preventive mechanisms should have the required capabilities and expertise. The visiting team usually consists of several persons, with one person performing the role of a group coordinator. Two persons, including the team coordinator responsible for drawing up a visit report, inspect the premises and buildings of the establishment, while others conduct individual conversations with persons deprived of their liberty. In order for the groups to be interdisciplinary the visits, whenever possible, are also performed by experts in general medicine, psychiatry and geriatrics. They draw up an expert opinion which is incorporated in the preventive visit report. The duration of a specific visit depends on the size of the visited establishment and the problems encountered there, and usually lasts 1 to 3 days. Every visit of the NMPT comprises the following stages: • conversation with the establishment’s managers; • inspection of all rooms used by persons deprived of their liberty; • individual and group conversations with detainees; • conversations with the personnel; • analysis of documents; • formulation of post-visit recommendations during the conversation summarizing the visit; • listening to the establishment managers’ opinions on the recommendations. During the visits, the NMPT employees may use measuring and recording devices including cameras. If a  person deprived of his/her liberty reports an unlawful event during the visit, he/she has the opportunity to lodge an official complaint. The complaint is then forwarded to the competent team within the CHR Office. Yet, if the person does not consent to addressing the issue officially, the visiting team considers the information as a report to be investigated in a way that prevents identifying the source. If the unlawful event is confirmed, the members of the visiting team report their findings to the director of the vis18