75 The topic of the SEE Network’s conference held in Belgrade on December 12-13, 2017, was the methodology of the National Preventive Mechanisms’ visits. 12.2.2. Conferences The topic of the conference organized by the Council of Europe in Strasbourg on April 4-5, 2017, was the establishment of the network of the EU’s National Preventive Mechanisms. The consultation organized by the Council of Europe in Strasbourg between May 30 and June 1, 2017, focused on establishing the standards of immigration detention and the methodology of visiting places of detention by independent organizations. The objective of the professional conference organized by the UN in Geneva on October 6, 2017, was to discuss those efficient legal guarantees which could ensure the prevention of torture and other cruel, inhuman or degrading treatment or punishment in police custody and pretrial detention. The meeting organized in Prague on November 14-15, 2017, discussed the National Preventive Mechanisms’ role in legislation and the training of staff members participating in performing this task. The working meeting organized within the frameworks of a joint study by Oxford University and the National Preventive Mechanism of the United Kingdom between December 13 and 15, 2017, focused on monitoring human rights in asylum detention. 12.2.3. Bilateral cooperation On April 19, 2017, the NPM had a meeting in Vienna with Gertrude Brinek, member of the Austrian Ombudsman Board, and her colleagues. The topic of the meeting was performing the tasks of the National Preventive Mechanism and the Ombudsman’s general activities. The NPM and the Department’s staff members met the representatives of the Austrian National Preventive Mechanism in Sopronkőhida, on September 28, 2017. They jointly visited the Sopronkőhida Strict and Medium Regime Prison and discussed the visit’s methodology. 12.3. International activities The NPM received the CPT’s delegation on October 20, 2017. The NPM and his colleagues outlined the challenges the Hungarian authorities had to face due to the mass influx of foreign nationals into the country. They explained the current situation, the major changes in the legal environment, and the lessons of their visits to the transit zone. During the exploratory talks, the members of the CPT’s delegation asked about the situation of unaccompanied minors and the findings of the NPM’s inspections. The NPM received the delegation of the Office of the UN High Commissioner for Human Rights on October 25, 2017. The delegation inquired about the situation of civil society organizations in Hungary, the handling of unaccompanied minors, and the findings of the visit to the Topház Unified Social Care Institution of Pest County. The topic of the conference of the European Network of Ombudspersons for Children (ENOC), held in Athens between November 12 and 14, 2017, was the protection of the fundamental rights of minors participating in mass migration. The participants reviewed and discussed the implementation of recommendations made by ENOC regarding the protection and social integration of migrant children.