(f) Expert opinions A commission/mission may come across a range of information that may require examination and analysis by an expert. The expertise required will depend on the mandate, the priorities identified and the information that is sought and gathered. For example, when investigating killings and torture, a forensic pathologist, with experience in dealing with cases of torture could examine persons who allege they were tortured to establish if the injuries they sustained are consistent with their allegations. Such an expert could also help in interpreting an autopsy report, and examine corpses or photographs of corpses to assess whether the autopsy report correctly reflects all the injuries and the cause of death. In conflict situations, a military or ballistics expert with experience in combat can assist the commission/mission in understanding the nature of the weapons used, their accuracy and the ability of those using them to prevent indiscriminate attacks on civilians. Information-gathering methods of the United Nations Fact-finding Mission on the Gaza Conflict (2009) “(a) The review of reports of international organizations, including the United Nations; reports and other documentation, including affidavits, produced by non-governmental and civil society organizations (Palestinian, Israeli and international); media reports; and writings of academics and analysts on the conflict; (b) Interviews with victims, witnesses and other persons having relevant information. In keeping with established human rights methodology and in order to ensure both the safety and privacy of the interviewees and the integrity of the information provided, such interviews were conducted in private. The Mission decided not to interview children. The Mission conducted 188 individual interviews. Most interviews were conducted in person. If the Mission was unable to meet the relevant persons, interviews were conducted by telephone. Also in keeping with normal practice for this type of report and to continue to protect their safety and privacy, the names of the victims, witnesses and other sources are generally not explicitly referred to in the report and codes are used instead. The names of individuals who publicly testified at the hearings held by the Mission or who have explicitly agreed to be named are, however, identified; (c) Site visits to specific locations in Gaza where incidents had occurred. The Mission investigated 36 incidents in Gaza; GUIDANCE AND PRACTICE 47