Doctrine of Leading Case of Com. v. Thompson.—In Com. v. Thompson (6 Mass., 134), Parsons, C. J., observes: “There was no evidence to induce the belief that the prisoner by his treatment intended to kill or injure the deceased and the ground of express malice must fall. It has been said that implied malice may be inferred from the rash and presumptuous conduct of the prisoner in administering such violent medicines. Before implied malice can be inferred, the judges must be satisfied that the prisoner by his treatment of his patient was wilfully regardless of his social duties, being determined on mischief.... To constitute manslaughter, the killing must have been the consequence of some unlawful act. Now there is no law which prohibits any man from prescribing for a sick person with his consent; and it is not a felony, if through his ignorance of the quality of the medicine prescribed, or of the nature of the disease, or of both, the patient, contrary to his expectations, should die. The death of a man killed by voluntarily following a medical prescription cannot be adjudged felony in the party prescribing unless he, however ignorant of medical science in general, had so much knowledge or probable information of the fatal tendency of the prescription that it may be reasonably presumed by the jury to be an act of wilful rashness at least, and not of honest intention and expectation to cure.”
The Doctrine of the Thompson Case Too Broad.—This lax statement of the law, made by the learned chief justice in this case, has been much doubted and criticised. It appears to be unsound in the length to which it goes in requiring, in order to constitute criminal liability, what may be termed excessive gross carelessness or wilful gross carelessness. It apparently runs counter to the prevailing opinions of the English judges, and to the later decisions of the courts in the United States, although it is followed and approved in Rice v. The State, 8 Mo., 561.
In Rex v. Long (4 Car. & P., 308-310), Park, J., said: “I call it acting wickedly when a man is grossly ignorant and yet affects to cure people, or when he is grossly inattentive to their safety.”
So in Rex v. Spiller (5 Car. & P., 353), the Court said: “If a person, whether a medical man or not, professes to deal with the life and health of another, he is bound to use competent skill and sufficient attention; and if he causes the death of another through gross want of either he will be guilty of manslaughter.”
Bishop, in his work on Criminal Law, lays down the rule that not every degree of carelessness renders a practitioner liable to criminal prosecution, and that it must be gross, or, as more strongly expressed, “the grossest ignorance or most criminal inattention.”[189]
Nevertheless he quotes with approval (2 Bishop Crim. Law, 264) the remark of Willes, J., that a medical man is taking a leap in the dark if he knew he was using medicines beyond his knowledge; and also the remarks of Bayley, J., in Rex v. Simpson (1 Lewin, 172), who said in that case: “I am clear that if a person not having a medical education, and in a place where a person of a medical education might be obtained, takes it upon himself to administer medicines which may have an injurious effect, and such medicines destroy the life of the person to whom they are administered, it is manslaughter. The party may not mean to cause death, or the medicine may produce beneficent effects, but he has no right to hazard medicine of a dangerous tendency when medical assistance can be obtained. If he does, he does it at his peril.”[190]
Gross Negligence Defined.—In general it may be stated that gross negligence is necessary to constitute criminal liability, but this may be predicated upon, or inferred from, such want of ordinary care and skill as shows gross ignorance, or such want of attention as indicates wilful disregard of the well-known laws of life and health.[191]
Gross Negligence Resulting in Injury a Misdemeanor.—It has also been held that although death does not but injury does ensue, as the result of gross negligence or inattention, that constitutes a misdemeanor punishable criminally.[192]
In Determining Degree of Negligence Circumstances and Conditions Govern.—It should be noted, however, that the circumstances and conditions attending the act of alleged criminal malpractice should be given much weight. So also should due weight be given to the advancement of knowledge and education in the world in general, and in the medical profession in particular. In an early English case, one of the judges remarked that not as much knowledge and skill could be expected of a surgeon or physician in a sparsely settled country district as in a city, and that he was at a loss to know what degree of knowledge and skill should be required of such a person. But in Gram v. Boener, 56 Ind., 447, Worden, J., said: “It seems to us that physicians or surgeons practising in small towns, or in poorly or sparsely settled country districts, are bound to possess and exercise at least the average degree of skill possessed and exercised by the profession in such localities generally. It is not true, as we think, to say that if a physician and surgeon has exercised such a degree of skill as is ordinarily exercised in the particular locality in which he practises, that would be sufficient. There might be but few practising in the given locality, all of whom might be quacks, ignorant pretenders to knowledge not possessed by them, and it would not do to say that because one possessed and exercised as much skill as the other, he could not be chargeable with the want of reasonable care and skill.”[193]
Unlicensed Practitioner Causing Death Guilty of Manslaughter.—Since the adoption by most civilized states and countries of the salutary practice of regulating by statute the practice of medicine and surgery, and forbidding persons not duly licensed from practising, and making it a misdemeanor to violate any of these statutes, it is clear that any person not having the requisite medical education and a license, who attempted to administer drugs and medicines or to perform operations, and through want of ordinary knowledge and skill caused the death of another, would be held guilty of manslaughter, because he brought about the death while he himself was engaged in a violation of the law. In some states where no discrimination in this respect is made between misdemeanors and felonies, the crime would be murder, punishable by death; and it has always been the law that an empiric or quack holding himself out as a regular physician is bound to have and exhibit the degree of skill and care which he professes, and will be strictly held to the standard of skill of educated and licensed medical men.[194]