19. D  etainees are able to make complaints confidentially and without fear of reprisals or other negative consequences, and that protection schemes are available for detainees who allege torture; 20. Measures are taken immediately after allegations of torture have been raised in order to avoid any contact of the potentially involved persons with witnesses, the victim, or the victim’s family, and that any involvement of the alleged perpetrator(s) in the investigation is avoided; 21. Procedures are in place to mitigate against the risk of complaints being tampered with or ignored; 22. Mechanisms dealing with complaints are effective, transparent and non-discriminatory; 23. Complaint mechanisms are simple and accessible, including through the installation of telephone hotlines or confidential complaint boxes in places of detention; 24. Detainees are provided with information on the rights of detainees, criminal defendants, and victims of violence, as well as information on complaint mechanisms and access to appropriate assistance and support, including legal aid and free legal assistance and victim support services, in the language the detainee understands; 25. Information on complaint mechanisms and the reporting of torture or other ill-treatment are available in both written and oral form, in Braille and easy-to-read formats, and in sign languages for deaf or hard-ofhearing individuals, and that this information is displayed prominently in all places of deprivation of liberty; 26. In addition to information about how to make a complaint, detainees are informed about what to expect when they make a complaint and the procedures to be followed once the complaint has been lodged, including protective measures, timelines for response and the procedures for follow-up; and 27. CSOs, defence lawyers and independent monitoring bodies have unrestricted access to all places of detention, including police stations and interrogation facilities. 65