Friday, June 19, 2015

The Forensic Evaluation of a Stab Injury

Developments in Forensic Medicine have provided real tools to assess the nature of any injury leading to the truth in almost any situation where a person has suffered from an injury.

An injury sustained as the result of the plunging of a sharp object into the body is considered a ‘sharp force injury’ or ‘stab wound’. Forensic specialists are highly qualified to analyze and assess the exceptional qualities of a stab wound and differentiate them from other kinds of injuries.

Stab wounds are usually classified by the following exceptional characteristics: span of cut on the surface is less compared to the depth of the wound; clean cut borders; one end of wound will have a pointed edge while the opposite end will have a fish tail appearance; the shape of the weapon may be arrived at by joining together the edges of the wound revealing the cross section of the weapon; and the direction of the wound will demonstrate notching caused by the motion of the body relative to the movement of the weapon.

Medical issues associated with stab wounds may be quite complicated. Outside hemorrhage is the most visible, but heavier trauma in deeper tissues is significantly more serious. Many infections can be due to this kind of injury in addition to an air embolism which can cause other medical problems in the entire body. Many of these wounds are concealed or puncture wounds which often don't reveal any external markings.


The evaluation of a stab wound can show many facts critical to an investigation and an appropriate judgment. The category of the weapon and the kind can be discovered. Physical features of the perpetrator and chronological events can be determined by the force of impact. Likely relative locations of the victim and perpetrator in addition to the age of the injury can also be discovered. Finally, the character of the harm whether it was suicidal, homicidal or unintended, can be deduced by the direction, location and amount of wounds.

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