Final answer:
The best criteria for selecting an expert witness should be based on their expertise, credibility, and lack of bias, not merely on the number of court appearances they have made.
Step-by-step explanation:
When selecting an expert witness, the most important factors are not the quantity of court appearances but rather the quality and relevance of the expertise, their honesty, absence of bias, and their alignment with the consensus among experts in the field. While a long history of court appearances may suggest experience, it does not guarantee credibility. Attorneys should seek expert witnesses who are well-informed, clearheaded, and able to provide testimony that reflects an agreement with other experts in the field. Additionally, being aware of any potential biases is crucial as they can affect the trustworthiness of the testimony. Lawyers may educate jurors on the variability in the reliability of eyewitness testimony, often highlighting the potential for memory distortion and unconscious prejudice.