Medical Jurisprudence, Forensic medicine and Toxicology. Vol. 1

by R. A. Witthaus; Tracy C. Becker

In the case of Sellis,[643] the man was generally supposed to be right-handed, though he was found dead in bed with his throat cut and the razor on the left side of the bed. In point of fact, he was ambidextrous in the use of the razor. The second case, which occurred in London in 1865, was still more remarkable.

A publican was found dead in bed with his throat cut in a left-handed manner. He was supposed to be right-handed and there was bloody water in a basin in the room. His wife, who gave the alarm, had marks of bruises on her, and though she said she had found her husband dead in bed after having left it for a short time, suspicion fell upon her, especially as they were in the habit of quarrelling. The suspicions were removed, however, by the explanation that he had been brought up as a wood-carver, which required him to use both hands equally, and that he had frequently threatened to kill himself, and further that the bloody water in the basin was due to a daughter washing her hands after having touched her father. It is even conceivable that an ambidextrous person, to avoid suspicion of suicide or to impute murder to another, might inflict a suicidal wound from right to left. Notwithstanding all this, the above cases are very rare exceptions, and the rules stated above as to incised wounds in the throat hold in almost every case.

In the case of stab-wounds of the chest, especially in the cardiac region, the same rule as to the direction holds good, and in these wounds we can often define the direction more accurately than in the case of incised wounds. If the suicide is right-handed the wound is regularly on the front or side of the body and directed obliquely from above downward and from right to left, while it is from left to right in case of a left-handed suicide. A murderer from behind, or from that side the hand of which the victim would use, may inflict a wound in the same situation and direction as a suicidal one. Here again this may be done with the motive of concealment of the nature of the crime. Homicidal stab-wounds inflicted from in front, as they generally are, are usually directed from left to right, and they may be directed from above downward or in the opposite direction. Oblique wounds from above downward may be either suicidal or homicidal; those directed from below upward are almost always homicidal.

When a wound is caused by an instrument both cutting and puncturing, suicide cannot be admitted unless the direction of the wound is compatible with that which the weapon which inflicted the wound, held in the hand of the deceased, might cause. Taylor recommends to place the weapon in the hand of the deceased to see if the direction of the wound could possibly correspond with that which could be taken by the weapon in the hand of the deceased with any position possible for the arm and hand. Therefore certain wounds by position and direction exclude suicide, but if a wound is possibly suicidal it is also possibly homicidal.

Though suicidal wounds vary, the above points are sometimes of real assistance in distinguishing between suicide and homicide, especially if the body has not been moved.

Evidence Furnished by the Number and Extent of Wounds.—Multiplicity of wounds, as a rule, indicates homicide, and indeed the reverse is true in a majority of cases that a single wound points to suicide. There are many exceptions, however, to both statements. Multiple wounds are possible in suicide, and that, too, with different weapons; even drowning or hanging may be resorted to after self-inflicted wounds have failed. If several wounds are found, each one of which or more than one of which may be considered grave, it is usual to conclude that the wounds were not self-inflicted, but the medical expert should not judge too hastily from this fact alone, for most wounds do not kill instantly. With the presence of several wounds in a case of suicide only one of these, as a rule, is “mortal” in character. This being so, some have asserted that if two mortal wounds are present, especially if one of them is stupefying, such as a wound about the head, such wounds are incompatible with suicide. A definite statement of this kind cannot go unchallenged unless the two wounds are in different parts of the body, and both of such a nature as to be immediately or very rapidly fatal. For all cases of suicide or homicide do not die immediately from wounds commonly called mortal; in fact, this may be said to be the exception rather than the rule. We may safely say, however, that if there are several distinct wounds on the throat, each involving the large vessels, the inference is plainly murder.

Fig. 10.—Suicidal Cut Throat from Left to Right, showing the Tentative Cuts at the Commencement and the Serrations at the Termination of the Wound.

Several wounds by the same or different weapons cannot, therefore, be proof of homicide. The case of a lunatic suicide is reported who inflicted thirty wounds upon his head. In a case of homicide with multiple wounds the situation or direction of some one or more of them may give evidence as to the origin of the wounds. Ogston, Sr.,[644] states that especially in the case of incised wounds of the throat a suicide may make a number of small or superficial tentative cuts besides the principal one, but these incisions are all usually parallel (see Fig. 10). In the case or multiple homicidal incised wounds of the throat, on the other hand, the wounds are not parallel, owing probably to the resistance of the victim in this case and his remaining passive in the former. The extent of the wound refers to the number and importance of the parts injured. In regard to incised wounds of the neck, this point has been thought by some to furnish presumptive evidence of suicide or homicide—of homicide if the wounds are deep, of suicide if they are not. While it is true that suicidal wounds of the neck are, as a rule, not very deep, and that they seldom reach the vertebræ and generally do not divide the vessels on more than one side, yet sometimes such wounds are as deep and extensive as homicidal ones. This may imply a determined purpose not to be foiled in the attempt at suicide. Thus Marc reports a case of suicide by an incised wound of the neck, where the wound was so deep as to reach the vertebræ or their anterior ligaments and to divide the trachea and œsophagus, both carotids and jugular veins. The extent of this wound was greater than in most suicides, but still we can hardly lay down a hard-and-fast rule of much practical value according to which extensive wounds are evidence of murder. Such wounds are, however, presumptive of murder taken in connection with other signs pointing that way.