Difference between Suicidal, Homicidal and Accidental Wounds

 

Wounds can be broadly defined as a “disruption of the continuity of tissues produced by external mechanical force “. 

Wounds which are present over the body to defend oneself from an assault are called defence wounds.

In case of Death occurring from wounds the question is often raised as to whether they were the results of accident, suicide or homicide.

In forensic science, distinguishing between suicidal, homicidal, and accidental wounds is crucial for homicide investigations, legal proceedings, and understanding the context of injuries. Each category has distinct characteristics, which forensic experts analyze to draw conclusions about the circumstances surrounding a death. 

The opinion whether the death is caused by suicidal, homicidal or accidental wounds can be established by –

1. Circumstantial Evidence

2. Examination of crime scene

3. PM(post- mortem) Examination of Victim

4. Examination of Suspected person

5. Examination of Weapon

The differences between Suicidal, homicidal and accidental wounds can be established by the position of wound, number and severity of wounds, direction, weapon at sight, clothes and by defence wounds.

1. Suicidal Wounds

Location: Commonly found on areas accessible to the individual, often on the wrists, neck (can be indicative of hanging), or torso. In cases of self-inflicted gunshot wounds, the location may vary (e.g., head, chest).

Type of Wound: Typically characterized by clean cuts or well-defined lacerations, or, in gunshot cases, specific entrance and exit wounds. Presents of hesitation cuts favours suicidal manner of wounds. Hesitation cuts or trial wounds are multiple, small and superficial cuts seen at the beginning of the incised wounds. Hesitation cuts are suggestive of hesitation of the person self inflicting the wounds, while gaining the courage to make a final decisive cut.

Orientation/Directionality: The wounds often align with the individual's natural position or movement (e.g., a cut on the forearm may indicate an intent to inflict pain).

Presence of Defensive Wounds: Generally absent, as the individual is not defending against an attacker.

Circumstantial Evidence: There may be evidence of premeditation, such as suicide notes, prior mental health issues, or communication of suicidal intent, or recent financial crunch or other failure. House is usually locked inside.

Relevant findings: If a man shot himself, there would be powder residue from unburned carbon on the hand that fired the gun. Most suicide shots are at contact or near contact range, causing a burn mark around the wound and leaving gunpowder residue (which can be wiped off). At contact range, and if the gun is fired just above a bone, such as the skull or the sternum, a star like wound is produced. After one shot, even if a suicide victim isn't dead, he would likely be unconscious or physically unable to fire a second time. Multiple shots usually indicate homicide

2. Homicidal Wounds

Location: Often found in areas that signify struggle or attack, including the neck, abdomen, and chest. Homicidal wounds may also be inflicted from behind.

Type of Wound: Can include a mix of stabbing wounds, lacerated wounds, incised wounds, gunshot wounds, and blunt force injuries. Stab wounds might be deeper and more irregular than suicidal cuts. Incised wounds on nose, ears and genital are usually homicidal, caused by jilted lovers, husband or wife due to sexual jealousy.

Orientation/Directionality: The direction and depth of the wound may vary; for example, defensive wounds can occur if the victim attempted to protect themselves. Stab wounds of the chest are most commonly directed at an angle from left to right and from above downwards.

Presence of Defensive Wounds: Common, as victims may struggle against an attacker, resulting in wounds on the hands, arms, or where they attempt to shield themselves. Evidence of struggle, torn clothes, missing buttons, Disarranged room etc. suggests homicidal nature of wounds.

Manner of Infliction: The presence of multiple stab wounds, or use of a weapon, is indicative of a homicide. There may also be evidence of a struggle, such as bruising or abrasions.

Contextual Clues: Circumstantial evidence such as the presence of a weapon, DNA, or the absence of a suicide note, which indicates homicide rather than suicide; history of fight/quarrel/vengeance with an enemy

3. Accidental Wounds

Location: Can vary widely and are often found in areas where individuals might accidentally injure themselves, such as hands, arms, or legs.

Type of Wound: May include cuts, bruises, or fractures, often arising from falls, sports, or mishaps with tools.

Orientation/Directionality: Wounds typically do not have the regularity or specific intent seen in suicidal or homicidal wounds. They are often inconsistent in pattern.

Presence of Defensive Wounds: Generally absent, as there is no intent to harm from another party.

Circumstantial Evidence: The context surrounding the injury often reveals the nature of the incident (e.g., witness accounts, scenarios consistent with accidental injury).

Documentation: Medical records or police reports often indicate the nature of the incident that caused the injury.

MEDICO-LEGAL SCENARIO

• The usual question that a defence pleader puts to medical witness in the case of bruises is whether they were caused accidentally by a fall or deliberately inflicted in a domestic violence or homicidally by mechanical force. The reply to this question is not easy in all cases. 
• However, the position and arrangement of the bruises may help the witness to give a definite reply. In the case of a fall, a medical practitioner should look for the evidence of sand, gravel or mud on the body. 
• The shape and size of a bruise generally correspond to the weapon used in inflicting the jury. 
• Thus, a bruise caused by a blow from a fist or a butt end of a club (lathi) or a hammer is usually rounded in appearance. A bruise inflicted with the length of a club or stick is, as a rule, elongated and irregular.
• A soft cane, lathi or whip usually produces two parallel bruises with an intervening space almost equal to the diameter of the weapon. A bruise caused by a whip may also encircle a limb or part of the body and may present an abraded surface at the end.
• A cycle chain, a strap, or a car tyre, may produce a patterned bruise. 
• Several types of injuries, bruises, and contusions can be caused by a shod foot depending on whether the toe or the heel is used to cause the injury.
• Under the Protection of Women from Domestic Violence Act, 2005 there is description of terms given, such as physical and sexual abuse. "Physical abuse" is defined as an act or conduct which is of such nature as to cause bodily pain, harm, or danger to life, limb, or health or impair the health or development of the aggrieved person and includes assault, criminal intimidation and criminal force. "Sexual abuse" includes any conduct of a sexual nature that abuses, humiliates, degrades or otherwise violates the dignity of woman. The forms of physical violence could be incidents such as banging, pulling hair, hitting against wall, etc and the resultant injuries.

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