100. The delegation was also informed that many police officers charged with custodial duties in the PDRCs did not benefit from the regular initial police training at the police academy. The delegation met with a great number of police officers charged with custodial duties who had only undergone a four-month “fast-track crash course” and who did not benefit from any on-the-job training. The Committee considers that increased and regular professional training for police officers should be provided as a key measure to developing both a transparent and accountable, and also human rights-oriented police service. Such training should cover, in addition to first aid, de-escalation and intercultural skills, features essential to the protection of human rights in the exercise of police powers, with emphasis on the prevention of ill-treatment based on European standards, and reporting on the use of force. 101. Moreover, the delegation also gained the impression that some of the directors or senior management of pre-removal detention centres met were not fully informed about the reality of the situation within their centres, especially when it comes to the material conditions within the wings, or did not fully assume their management responsibilities to effectively address shortcomings, for instance in terms of hygiene and maintenance, and guarantee for the wellbeing of the persons detained under their responsibility. Further, heads of institutions should also be able to give instructions to all staff working in the establishment, including to healthcare staff, for instance to guarantee that requests by detained persons to see the doctor are effectively met. 102. In light of the above, the CPT recommends that the Greek authorities review the staffing needs of the pre-removal detention centres with a view to reinforcing the presence of non-custodial personnel, such as cultural mediators, social workers, and psychologists, inside the detention wings. The CPT also recommends that additional steps be taken to further promote the role of custodial staff in Greek pre-removal detention centres by developing a distinct career path, based on careful selection and appropriate training. This requires strengthening the provision and implementation of both initial and on-going training for custodial officers. To this end, a comprehensive plan for staff training should be developed, which should include modules on inter-personal communication, trauma-informed care, cultural sensitivity and de-escalation. Professional training for senior managers should also be provided. Further, reporting structures for all police officers charged with the custody of foreign nationals deprived of their liberty should be improved. 32