PRISONS 23 for the Investigation of Arbitrary Incidents and were encouraged to file complaints, which were often directly received by members of the inspection team during their visit or were mailed shortly after that. During their visit in cells and wards, the team distributed questionnaires, with multiple choice close-ended questions and a free text section. The NPM team had decided upon the form and content of the questionnaires following training and in compliance with international standards. Questions focused on detention conditions, perceptions of safety, violent incidents, access to certain amenities, services or activities and after-release prospects. Questionnaires were anonymously filled with the assistance of the NPM members and were collected on the same or following day. It was the second year that the NPM team had used questionnaires and the response of the detainees continued to be encouraging. The collected material has proved a valuable additional source of information regarding detention conditions, it has contributed to the planning of more targeted interventions and it has provided the Mechanism with the necessary feedback to assess its efficiency and make the necessary adjustments. The team had access to all premises of the detention facilities and could take photographs (from cells, wards, solitary confinement areas, first night accommodation Larissa detention facility - inspection 30/9-1/10/19 23 See article 1, L.3938/2011 and article 3 § 4, L.3094/2003, amended with article 188 L.4662/2020 27