Annual Report 2016 - Spain’s National Preventive Mechanism against Torture Chart 1 As in previous years, the aim of these visits is to detect any possible defects that could entail torture or ill treatment, or hinder the investigation and sanctioning of this type of act, examining the treatment given to persons deprived of liberty and checking whether their fundamental rights are upheld, and the conditions of such deprivation of liberty. During the visits, interviews are held with the civil servants in charge of custody and the facilities, and inmates are individually interviewed, on a confidential and voluntary basis. The facilities are also visited to examine records and documentation, to appraise the video surveillance system, etc. 14