Quote from bigdavediode:
The following standards are widely accepted:
1. The person has sufficient expertise in the subject matter <s>in question</s> AND agrees with MMGW.
2. The claim being made by the person is within her area(s) of expertise AND they agree with MMGW.
3. There is an adequate degree of agreement among the other experts(Only if they agree with MMGW) in the subject in question.
4. The person in question is <s>not</s> significantly biased.
5. The area of expertise is a legitimate area or discipline AND they agree with MMGW.
6. The authority in question must be identified AND agrees with MMGW.