THE CHARACTER AND WEIGHT OF THE EVIDENCE TO SUSTAIN THE OBJECTION.
Where the objection is made, the burden of proof to establish the grounds of privilege is upon the person objecting.[466] In Missouri it has been said that the statement of the physician, that he cannot separate his impressions received in his relation of physician from those received at other times, is not in itself sufficient to justify the exclusion of his evidence; that the facts themselves must appear to the Court, and it might be developed on proper cross-examination that discrimination could be made.[467]
But it would seem that because of the necessarily delicate nature of the inquiry, to avoid disclosing what the statute forbids, the burden is overcome with slight evidence, and inferences and presumptions are freely indulged in aid of the privilege; for instance, where the physician was not permitted to answer whether he did converse with his patient about an injury, or whether he made an examination with reference to it, it was urged that the objection was prematurely made, but it was held that the fact that the patient consulted a physician on the occasion to which the inquiry related, when considered with the nature of the questions, justified the exclusion in the absence of other proof.[468] But the physician may testify that he did attend his patient as physician;[469] and he may answer the question whether the information was necessary to enable him to act in his professional capacity;[470] for while his testimony on that point is not conclusive, and the Court uses its own judgment in reaching a determination, his testimony is competent evidence.[471] He may also testify that a person was ill and was his patient, that he attended as physician, and he can state when he attended and how many times.[472]
It has been said that where the evidence justifies the conclusion that information regarding the patient is acquired while attending in a professional capacity, it is not essential to show by formal proof that the information was necessary.[473]