20 F. Cas. 1092 | D. Mass. | 1854
said, that a similar question had heretofore arisen as to experts, and he had declined to issue process to arrest, in such cases. When a person has knowledge of any fact pertinent to an issue to be tried, he may be compelled to attend, as a witness. In this, all stand upon equal ground. But to compel a person to attend, merely because he is accomplished in a particular science, art, or profession, would subject the same individual to be called upon, in every cause in which any question in his department of knowledge is to be solved. Thus, the most eminent physician might be compelled, merely for the ordinary witness fees,