Administrative assistant The number of administrative assistants required depends on the number of members and staff, the complexity of the investigations, the number and location of field missions and the duration of the investigation. Logistics assistant Has responsibility for assisting with equipment, procurement, transport, communication and shipping. It may not be necessary for the logistics assistant to be employed fulltime and his/her services may be required only during the establishment of the secretariat, and during field missions to arrange office space, equipment, transport and accommodation for the secretariat and members. Archivist/data management officer This task should be performed by specialized professional staff or by staff specifically assigned to and trained for this function. Security officer Has primary responsibility for safety and security oversight of all activities through continuous risk assessments and the development of appropriate risk mitigation strategies. Interpreters Due to the sensitivity and confidentiality of the proceedings, it is good practice to recruit international interpreters. It is important to select interpreters that are prepared for field visits, including ones that may involve some level of security risk and entail some hardship. Interpreters need to be fully briefed on the methodology followed by the commission/ mission, on the policies and rules related to the confidentiality of information and the protection of sources, and on how to deal with victims of serious violations. Translators The commission/mission may require capacity to translate documents, reports, analysis or public information into its working language. Criminal investigators Some investigations, especially those with a mandate to establish individual accountability and criminal responsibility, will benefit from the skills and experience of criminal investigators to complement those of human rights investigators. GUIDANCE AND PRACTICE 25