CAT/OP/CHE/CSPRO/1 the seriousness of the issue, it should also be pointed out that members of staff do all they can to prevent acts of self-harm, including by maintaining good relations with detainees, as noted by the Subcommittee. Moreover, the occurrence and the seriousness of some acts of self-harm must be considered in the light of the determination of several detainees to avoid deportation from Switzerland. Staffing 122. Paragraph 138: The Subcommittee reminds the State party that the process for the selection of custodial staff in administrative detention centres must be particularly rigorous and that they must have appropriate training, given the sensitive nature of the tasks they are called on to perform. 123. The Directorate General of the Office for Detention of the Canton of Geneva has been carrying out an ambitious medium- and long-term policy on recruitment and training, including in-service training. In addition, the guards at Frambois are gradually being integrated into the initial basic training programme, with the aim that they complete the training needed to obtain the federal diploma for prison officers. The Subcommittee’s reminder supports this approach. 124. The aim of the basic training that leads to the federal diploma for prison officers is to equip trainees with the operational skills they need in order to work in places of deprivation of liberty. The cantonal authorities are responsible for decisions relating to recruitment and enrolment in basic training. The basic training is not specific to administrative detention centres but equips trainees with all the skills needed to work in those centres. It is structured around five general themes: working in places of deprivation of liberty (cross-cutting skills); from arrest to release; support and supervision in living and work units; special groups of prisoners with specific needs; security and prevention; and health and prevention. 125. The most relevant international treaties 23 and the national legal framework are discussed frequently in the course of the training. There is a basic training module that deals specifically with the situation of persons in administrative detention, with a particular focus on: specific legal aspects; the specific characteristics, physical and psychological vulnerabilities and corresponding needs of persons in administrative detention; the main causes of stress among persons in administrative detention; offers of support and assistance; the skills needed by prison officers working with persons in administrative detention; and the behaviours and attitudes to adopt when working with persons in administrative detention. The training also covers the topic of foreign persons in detention, which encompasses key issues such as intercultural skills, prejudice, stereotypes, racism and religion. 126. Paragraph 139: The Subcommittee is also of the view that having a social worker present at Favra, as there is at Frambois, would be helpful in keeping detainees informed about their legal and administrative situation. 127. The authorities of the Canton of Geneva report that the Subcommittee’s recommendation has been duly noted, adding that the deputy director of the facility at Favra is a qualified social worker and worked as one in the prison sector for many years. The detainees are therefore not without social support. 23 GE.21-03864 In particular, the Convention against Torture and Other Cruel, Inhuman or Degrading Treatment or Punishment of 10 December 1984, the Manual on the Effective Investigation and Documentation of Torture and Other Cruel, Inhuman or Degrading Treatment or Punishment (Istanbul Protocol) and Council of Europe texts such as the European Convention on Human Rights, the European Convention for the Prevention of Torture and Inhuman or Degrading Treatment or Punishment, Recommendation Rec(2006)2 of the Committee of Ministers to member states on the European Prison Rules and Recommendation CM/Rec(2012)5 of the Committee of Ministers to member States on the European Code of Ethics for Prison Staff. 19