Ad hoc visits 5. The CPT carried out 11 ad hoc visits during the period covered by this General Report. The countries visited were Armenia, Azerbaijan, Germany, Latvia, the Caribbean part of the Kingdom of the Netherlands, the Russian Federation, Spain, Ukraine (in February and September 2014) and the United Kingdom (Gibraltar). In addition, the CPT monitored a return fight from the Netherlands. 6. The main objective of the May 2014 ad hoc visit to Armenia was to review the measures taken by the authorities vis-à-vis life-sentenced prisoners and, in particular, two such prisoners who were being held at Yerevan-Kentron Prison, in the light of specifc recommendations made by the Committee after previous visits. For this purpose, the CPT’s delegation carried out targeted visits to Kentron and Nubarashen Prisons in Yerevan. In addition, the delegation went to the Prison Hospital in Yerevan in order to interview one life-sentenced prisoner and to have consultations with medical staf. Moreover, it paid a visit to the construction site of Armavir Prison which in the future is intended to accommodate lifesentenced prisoners with other inmates. 7. The purpose of the November 2013 ad hoc visit to Azerbaijan was to examine the implementation of recommendations made by the CPT after previous visits concerning the treatment and living conditions of persons deprived of their liberty in psychiatric hospitals and social care homes. To this end, the CPT’s delegation carried out follow-up visits to Ganja Psychiatric Hospital and Psychoneurological Boarding Home No. 8 in Göygöl. It also visited a psychiatric hospital and a boarding home located in other parts of the country. General Report of the CPT, 2013-2014 ► Page 10 8. The principal focus of the ad hoc visit to Germany in November/December 2013 was the treatment and conditions of detention of persons held in preventive detention (Sicherungsverwahrung). Another objective of the visit was to review the procedures for the imposition of special security measures and, in particular, the use of mechanical restraint (Fixierung) and the placement of agitated and/or violent inmates in a specially secured room (besonders gesicherter Haftraum). In the course of the visit, the CPT’s delegation also monitored the situation of a prisoner convicted by the International Criminal Tribunal for the former Yugoslavia (ICTY) who is serving his sentence in Germany (see also paragraph 19). Moreover, the delegation held consultations with representatives of the Federal Ministry of Justice and Consumer Protection regarding the issue of surgical castration of sex ofenders. 9. The CPT gained a generally positive impression of the conditions of detention in the unit for preventive detention at Freiburg Prison (Baden-Württemberg), and the conditions in the newly constructed unit for preventive detention at Diez Prison (Rhineland-Palatinate) were found to be of a very high standard. However, the CPT concluded that the existing resources for treatment measures for persons in preventive detention in Baden-Württemberg and RhinelandPalatinate were insufcient to meet the requirements of the relevant federal and Länder legislation, namely to have a system of programmes which is tailored to the therapeutic needs of inmates and which motivates them to engage themselves in therapeutic activities. As regards the resort to mechanical restraint (Fixierung), the CPT observed signifcant improvements compared to the situation found during previous visits