CAT/C/IRL/CO/2 with data on the countries of origin of the persons denied leave to land and their point of embarkation for the State party, to which they were returned. Training 13. The Committee is concerned at the absence of specific training for public officials on the absolute prohibition of torture and on dealing with victims of gender-based violence, including domestic and sexual violence, as well as at the lack of training programmes on documenting injuries and other health consequences resulting from torture and ill-treatment, based on the Manual on the Effective Investigation and Documentation of Torture and Other Cruel, Inhuman or Degrading Treatment or Punishment (the Istanbul Protocol) (art. 10). 14. The State party should: (a) Make training on the provisions of the Convention and the absolute prohibition of torture, as well as on non-coercive interrogation methods, mandatory for public officials, in particular police and prison staff, including members of the Defence Forces, as well as for all other officials who come into contact with persons deprived of their liberty; (b) Provide mandatory training on gender-based and domestic violence for police and other law enforcement officials, social workers, lawyers, prosecutors, judges and other public officials dealing with victims of gender-based violence, including domestic and sexual violence; (c) Include information about the Convention and the absolute prohibition of torture in relevant training materials for law enforcement and other public officials; (d) Ensure that the Istanbul Protocol is made an essential part of the training of all medical professionals and other public officials involved in work with persons deprived of their liberty; (e) Systematically collect information on the training of public officials and law enforcement personnel and develop and implement specific methodologies to assess its effectiveness and impact on the reduction of the incidence of torture. Conditions of detention 15. While taking note of the decrease in the overall prison population and the measures taken to address overcrowding and improve material conditions, including the significant reduction in the number of prisoners required to slop out, the Committee is concerned that: (a) While the size of the prison population was reduced as a result of the adoption of the Fines (Payments and Recovery) Act 2014, the overall number of women in detention has continued to rise; (b) facilities; Remand and convicted prisoners continue to be held together in some (c) Overcrowding continues at the Dochás centre for female prisoners in Mountjoy prison, as well as in the male and female wards of Limerick prison; (d) In-cell sanitation continues to be problematic as 56 persons still have to slop out and 1,539 prisoners are required to use toilet facilities in the presence of another inmate, in cells where prisoners also have to take their meals; (e) There are systematic deficiencies in the health-care services in the prison system, including serious understaffing of prison personnel as well as a shortage of qualified medical and psychiatric staff and psychologists; (f) Solitary confinement has been used for prolonged periods, including as a disciplinary measure; (g) The regime for holding prisoners requiring protection is inadequate, including lack of outdoor exercise and almost no contact with the outside world; 5