29 number of detainees. 87 On the other hand, follow-up visits were paid to institutions that, due to renovation works, had been operating on temporary premises at the time of the first inspection. In these cases, the follow-up visits’ objective was to find out to what extent my recommendations made as regards the temporary premises and the treatment of detainees had been implemented after moving back to the permanent premises.88 My Office handled the schedule of visits confidentially, my colleagues working at other organizational units could not have access thereto. 4.2. Locations visited by the NPM in 2017 Under Article 19 of the OPCAT, the NPM’s task is to regularly examine the treatment of the persons deprived of their liberty in places of detention as defined in Article 4, with a view to strengthening, if necessary, their protection against torture and other cruel, inhuman or degrading treatment or punishment. In 2017, while performing the tasks related to the NPM, I inspected 1,772 detention units at 8 places of detention. The table below shows the names of the places of detention as well as the number of detention units. Number of interviewees February 8 Central Holding Facility of the MPHQoB 133 133 15.03 20 29 2 March 13-14 Márianosztra Strict and Medium Regime Prison 524 624 119.08 624 117 3 March 28 Budapest Remand Prison, Unit I 153 258 168.63 258 43 4 May 16-17 Platán Integrated Social Institution of Bács-Kiskun County 100 100 94.0 94 61 5 May 31 - June 1 Psychiatric Ward of the Balassa János Hospital of Tolna County 89 89 73.03 65 51 6 September 12-14 Nagymágocs Castle Home of the Aranysziget Integrated Retirement Home of Csongrád County 300 302 100.67 302 85 7 October 19 Lock-up Facility of the Fejér County Police Headquarters 34 34 20.58 7 10 8 November 28-30 Szabolcs-Szatmár-Bereg County Remand Prison 142 232 163.38 232 145 Altogether Number of the inspected places of detention: 8 1,475 1,772 94.30 1,602 541 87 88 number of detainees 1 name utilization rate (%) number of detention units inspected Date of the visit 2017 At the time of the visit authorized capacity (persons) Number Place of detention See my report № AJB-685/2017 on the follow-up visit to the Juvenile Penitentiary Institution See my report № AJB-3772/2017 on the follow-up visit to the Platán Integrated Social Institution of Bács-Kiskun County