Value—How Proved.—When the medical man is compelled to go into court to enforce payment for his services, it has been questioned whether he can testify to the services rendered, and the facts and circumstances surrounding the patient at the time of the treatment, because it has been claimed that he could not do so without violating the statute against the disclosure by physicians of information received which is necessary to enable them to prescribe. The tendency of the later decisions, however, seems to be that the breach of the patient’s contract to pay relieves the physician from his obligation of secrecy, and consequently, that if it is necessary for him to go into court and prove the value of his services, he may testify, within reasonable limitations, to all matters necessary to inform the court fully as to the nature and extent of the disease or injuries of the patient, in order that he may show the responsibility imposed upon him and the extent of the services that he has rendered. This subject will be fully considered under the head of “Privileged Communications.” The usual course of practice where there is not an express contract fixing the charges, is to prove the facts and circumstances showing the treatment and services, and then to produce other physicians who, in answer to a hypothetical question stating the facts and circumstances in the case, assuming them as true, are allowed, if they state they know the value of such services, to give an expert opinion as to what that value is.[176] It has also been said (Ordronaux, “Jurisprudence of Medicine,” § 43), that if a fee-bill of charges for such services has been established by an association of physicians recognized by law, such as a county medical society or a State medical society, incorporated pursuant to statute, such fee-bill can, if properly authenticated as having been adopted by the association, be offered in evidence on behalf of the patient and against the physician. But such a fee-bill in such a case would not be held to be conclusive evidence of the value of the services, but will be received in evidence, if at all, merely for the purpose of showing what was the usual and ordinary charge in such cases. As we shall see later on, under “Malpractice,” a judgment for services rendered, however small, is a bar to an action of malpractice, because a judgment for the value of the services rendered involves proof on the part of the plaintiff, and a finding on the part of the court, that the services had value and were skilfully performed and properly rendered.[177]
Custom of Physicians to Treat Each Other Gratis, Enforceable.—Physicians frequently treat each other, and it has been held, where the custom exists to do so without charge, that such a custom is binding. Of course, this rule does not prevent physicians from making an express contract to waive the custom and agreeing that the services be compensated.
Elements to be Proved in an Action for Service, etc.—General Advice.—The result of these rules may be thus summarized, viz.: The elements to be established in an action for services by a physician against a patient are three in number—(1) the employment; (2) the performance of the services;[178] and (3) the value of the services, that value being either a fixed value determined by the terms of the contract between the parties, or the reasonable worth and value of the services determined by evidence of experts upon that subject. It is, therefore, important that physicians and surgeons should be advised, when entering upon the practice of their profession, to keep a record of their transactions and of their business generally. Because, if they are compelled to go into court to recover for their services, they will be called upon to describe with minuteness the character and extent of the services they have performed in order that the value thereof may be correctly ascertained and determined in the suit. Any person in active practice who is not blessed with a most tenacious and particular memory is liable to forget a great many details which, with a record in hand, properly kept, could be brought to his memory and be testified to with absolute truthfulness and conviction. And the record itself, when properly shown to be a book of original entry, is generally receivable in evidence, as a memorandum of the transaction.[179]
CHAPTER V.
OF THE PRIVILEGES AND DUTIES OF PHYSICIANS AND SURGEONS WHEN SUMMONED AS EXPERT WITNESSES IN COURTS OF JUSTICE.[180]
Introductory—Distinction Between Expert Witnesses and Other Witnesses.—One of the most important positions that a medical man is called upon to assume by virtue of his professional character, is the position of expert witness. Most writers on medical jurisprudence confine themselves, in the discussion of this subject, to presenting the medico-legal rules which appertain to this position, and concede its high importance. Before defining what is meant by the term expert witness, or treating of the rules which determine the status of such witnesses in court, and their duties, it seems advisable to introduce the subject by a brief consideration of the distinction between ordinary witnesses and expert witnesses. When medicine and law are united in the purpose of investigating facts, and bringing about a legal determination as to what are or are not facts, they co-operate with each other in this way. The law furnishes the machinery for the inquiry and the rules which determine how it shall be prosecuted. The medical man, however, is called upon as an assistant to the law, because of his skill and experience in his profession, which enable him to ascertain and interpret the circumstances from which the facts sought to be established are to be inferred. Ordinary witnesses testify concerning matters of observation, the court and jury being endowed with the sole power to determine the credibility of their evidence and the true result of their observations. Yet the border line of distinction between witnesses who testify merely to actual matters of observation, and those who give their opinions upon and draw inferences from established facts and circumstances, is a wavering one. The general rule of evidence is well understood, that hearsay evidence is inadmissible, and yet, like any other rule, this has its exceptions which grow out of the necessities of given cases. This is so because there are and always will be, matters brought before courts for investigation and determination, long after the witnesses who personally saw the facts and circumstances of the particular case in which such matters are concerned have died, or have withdrawn beyond the reach of the process of the court. Possibly no record in writing of such facts and circumstances has been left, or if in writing it lacks the sanctity of being a judicial writing, and hence is no better evidence than any other form of hearsay evidence. For this reason in matters of family history, pedigree, custom, and the like, hearsay evidence is permitted, and is entitled to as much weight as any other evidence, if the witnesses giving it be trustworthy.
In Matters of Common Experience Witnesses in General Often State Conclusions.—Moreover, in matters of common experience, the testimony of any witness, if carefully analyzed, often shows that he is sometimes allowed to draw, and state, his conclusions and inferences, instead of being required to confine his evidence simply to telling in the strictest possible way, and with the closest limitations, what he actually witnessed. A good illustration of this is the case of a person who sees a crime of homicide committed by shooting, and is called upon to testify in court. He would be allowed to testify that the defendant, if he could identify the prisoner at the bar as such, was the person whom he saw fire the shot, although he might not have examined him with close scrutiny, and might never have seen him before the crime. In saying that the defendant was the person who fired the shot, while he would be in terms testifying to a fact, he would still be drawing an inference, and giving an opinion, based upon his recollection of the person whom he saw engaged in the act of firing, and of the likeness or resemblance of such person to the prisoner at the bar, which would be a matter of comparison and of opinion. So, too, although he could not see the bullet take its course from the mouth of the gun and imbed itself in the body of the deceased, yet if he saw the firing, heard the explosion, saw the flash and smoke of the powder, observed the direction in which the accused pointed the weapon, and saw the deceased stagger and fall, he would be allowed to testify in answer to a direct question whether or not the accused shot the deceased. And, yet in making up that answer he would be testifying not simply to a matter of actual observation, but to a conclusion. As it is in reference to the question of identity so it is as to many other matters which come before our courts, in all of which the witnesses are permitted, without objection, to testify to conclusions and to give answers which are the result of inferences which they draw themselves, rather than a statement of their actual observations. The law is not a metaphysical but a practical science, limited and confined by the practical restrictions which experience has shown must be put upon it, in order to enable it to accomplish its object of administering justice between man and man. Men form such conclusions as have been indicated, instinctively and unconsciously, and it would be practicably impossible for them to narrate any occurrence without embodying in their narration some of these natural and unconscious conclusions. The law, therefore, includes among the matters which witnesses are permitted to characterize as facts, those daily and hourly inferences and deductions which all men are accustomed to make, and concerning which no two men who are properly constituted can greatly differ. It is true that this practice sometimes leads to error, but it has grown out of necessity. The greatest safeguard is, that upon the trial of a question of fact both sides are represented by counsel, and the opportunity which cross-examination offers to an advocate of even reasonable and ordinary skill is such, that these conclusions and inferences may be sifted down through the chain of observation, and the process of drawing these conclusions and inferences from a series of facts, tested in such a manner that the improbability, probability, or truth of any given inference or conclusion may be determined with substantial accuracy. The illustrations which have been given above exhibit the simplest form in which so-called direct testimony can be demonstrated to be not always positive and direct testimony, but somewhat a matter of inference. Other examples and illustrations of common occurrence will exhibit still more closely the line between actuality and opinion. At times it becomes essential to the determination of a question, that the courts should know whether or not a person was angry, whether or not he was intoxicated, or whether or not at a given time, when his mental status was under observation, he acted rationally or irrationally. Lay witnesses have for many years been permitted to testify from observation, and without possessing any special qualification to do so, as to the existence or non-existence of such conditions as those just mentioned in a person whose actions are under consideration. It is manifest that in making any such inferences the witnesses’ testimony is mainly a conclusion based on inference. Take the case of anger. How shall that be determined? It is difficult to describe anger. A loud voice, a flushed face, the use of bitter words, nervous, excitable, demonstrative action—all these symptoms might occur, or but few of them might occur. So, too, in the matter of intoxication. It is well known that some individuals exhibit the effects of intoxicants in an entirely different manner and degree from others. Some men who are very much intoxicated, so as to be quite incapable, in the eye of the law, of forming a criminal intent, or of contracting an obligation which would be valid, may still be able to walk perfectly straight, or to talk without much confusion. Others, whose walk and demeanor would indicate a considerable degree of intoxication, might be mentally clear and unruffled and even stimulated by intoxicants to precise mental co-ordination and reasoning. Again, there are persons, as to whom a witness, after stating that he had observed them, and after stating the particular matters and things in which such persons were engaged, might with apparent accuracy state that they acted rationally or irrationally, and yet such persons might nevertheless, upon further examination, be found to have been acting according to a particular custom or habit, or idiosyncrasy of long years’ standing. Thus it is apparent that in each of these cases, when the witness attempts to state what, out of necessity, the court treats as a fact—viz., whether a given person is or is not angry, or intoxicated, or irrational—the witness is really testifying to the result, in his own mind, of his observations of the condition and conduct of the person who is under investigation, when compared with a standard which the witness has erected for himself. Hence such results are really matters of opinion evidence, pure and simple. Other examples of a like character are found in statements as to weight, height, distance, speed, and the like, as to which men of common powers of observation, who are not strictly experts, are, because of convenience and necessity and the probability of reasonable and ordinary accuracy, commonly permitted to give their own judgment and conclusions as evidence.
All Witnesses Often Permitted to Draw and State Conclusions in Matters involving Numerous and Complicated Details.—Thus the practical necessity of the administration of justice has led to the establishment of the rule, that where the details of an occurrence are numerous and complicated, and are incapable of precise description by ordinary observers, witnesses are permitted to use, in testifying, general expressions which really embody their conclusions from the facts or details observed by them. Greenleaf on Evidence, Section 440, note A; Wharton on Evidence, Section 434.