Which type of witness is allowed to provide testimony based on hypothetical scenarios?

Expert witnesses are specifically allowed to provide testimony based on hypothetical scenarios because they are called upon to offer specialized knowledge or opinions that require a certain level of professional expertise. Unlike fact witnesses, who can only share information based on their direct observations or experiences, expert witnesses can analyze a situation and draw conclusions based on hypothetical situations that may arise within their field of knowledge.

This ability allows expert witnesses to convey complex ideas and theoretical scenarios to aid the court's understanding of the matters at hand, particularly in areas like psychology, medicine, or other specialized fields. Their opinions can help establish standards of practice, interpret evidence, or clarify technical information that the average juror may find difficult to understand.

The other types of witnesses mentioned are limited in the scope of their testimony and would not typically discuss hypothetical scenarios in the court of law.