I.3.1.  Prison facilities 41.  In 2015 there were 10 visits to 9 Prison Facilities (Spanish acronym CP), of which 6 were connected with a study being carried out by the NPM into mechanical restraints used in the following Prison Facilities: Sevilla II, Brians I and II (Barcelona), Madrid V-Soto del Real, Madrid VI-Aranjuez and Brieva (Ávila). The remaining visits were to the following CP: El Dueso (Cantabria), Pamplona (Navarre) and Las Palmas II. There was also a follow-up visit to the Madrid VI-Aranjuez CP which formed part of a fact-finding visit by the Philippine Commission on Human Rights, the only visit which was not unannounced since it involved the participation of a foreign delegation. External experts participated in all visits with the sole exception of the follow-up visit. In addition, two of the visits involved the participation of members of the Advisory Council (Madrid VI-Aranjuez and Las Palmas II), and in another two (Brians I and Pamplona) the visits involved regional commissioners (experts from, respectively, the Ombudsman offices in Catalonia and Navarre). Finally, it should be noted that following the meeting held with the president of the Subcommittee for Prison Law of the Spanish Bar Association, during visits to CP carried out during 2015 contact has been maintained with the persons in charge of the Prison Legal Advisory Services for the purposes of gathering information in that regard. 10 visits to 9 CP Views from the El Dueso CP (Cantabria) 53