230. When selecting an interpreter, consider the interviewee’s gender, sexual orientation, gender identity, nationality, ethnicity, religion, education, literacy, language and dialect, and any of their preferences. An interviewee should have the right to express the wish for a different interpreter. (d) Disclose any real or perceived conflicts of interest, including prior knowledge of, or dealings with, the person being interviewed 231. An interpreter should: (f) Maintain confidentiality, and protect information obtained in the course of the work from unauthorized individuals (a) Only interpret for the language(s) for which they are qualified, authorized, or accredited (b) Provide a complete and accurate interpretation without alterations or omissions (c) Demonstrate a high level of professionalism and ethics and maintain their integrity, impartiality and independence (e) Avoid soliciting or accepting any gratuities or taking personal advantage of any information obtained in the course of their work (g) Sign and give any notes they have made during the interview to the primary interviewer. 232. An interpreter’s qualifications should be certified prior to the start of a session. At the end of the interview, the interpreter should certify, either in writing or on audio or video, that they have read the record of the interview back to the interviewee and that the interviewee has confirmed its accuracy. C. Detailed Guidelines on the Excavation of Graves 233. The following procedures apply to the excavation of all areas containing buried human remains. 234. Record the date, location, start and finishing times of the disinterment and the names of all workers and other persons present. 235. Record the information in narrative form, supplemented by sketches and photographs. Videotaping may also be considered. 236. Photograph the work area from the same perspective before work begins and after it ends every day, to document any disturbance not related to the official procedure. 237. If recording equipment, such as a total station, is not available, establish a datum point, then block and map the burial site using an appropriate-sized grid and standard archaeological techniques. In some cases it may be adequate simply to measure the depth of the grave from the surface to the skull and from the surface to the feet. Associated material may then be recorded in terms of its position relative to the skeleton. 238. Remove the overburden of earth, screening the dirt for associated materials. Record the level (depth) and relative co-ordinates of any such findings. The type of burial, especially whether it is primary or secondary, influences the care and attention 36 The Minnesota Protocol on the Investigation of Potentially Unlawful Death (2016) that needs to be given to this step. Associated materials located at a secondary burial site are unlikely to reveal the circumstances of the primary burial but may provide information on events that have occurred after it. 239. Search for items such as bullets, or personal items such as jewellery – for which a metal detector can be useful – particularly in the levels immediately above and below the level of the remains. 240. Once the level of the burial has been located, circumscribe the body and – after documenting archaeological findings such as the dimensions of the grave (noting in particular the edges of the grave outline), the deposition patterns and the characteristics of the matrix of the burial (the hole where the body is buried), including tool marks, where possible – open the burial pit to a minimum of 30 cm on all sides of the body. 241. Expose the body as clearly as possible to ensure that its full extent is visible before removal from the scene. Make sure to expose similarly all associated artefacts before removal. Carefully expose the burial area by digging on all sides to the lowest level of the body (approximately 30 cm). Also expose any associated artefacts.