Medical interpreting expert witnesses may opine on medical interpreting, source languages, sign language interpreting, and more. In Characteristics of Good Medical InterpretersAlex Uvarov, A&A Languages, LLC, writes:
A medical interpreter must show courtesy and respect toward all medical staff, ranging from doctors all the way to appointment schedulers. An interpreter should never giver their own opinion on a matter and should never disagree with a doctor or a nurse. If an interpreter needs to speak to a staff person and that person is busy then the interpreter needs to wait until that person is finished. Medical offices are sometimes stressful work environments; a good medical interpreter will show patience and understanding and not interrupt the work of medical staff.