physical injuries or death by
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Is an electrical charge in the atmosphere. Its
cause of occurrence and intensity is
unpredictable.
The flash of lightning is due to the passage from
a thunder cloud to the earth of a direct electric
current of enormous potential amounting to
something about 2,000 amperes.
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Because of the enormous power of destruction, it is
capable of producing injury to the human body.
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1. Direct effect from the electrical charge.
2. Surface flush burns from the discharge.
3. Mechanical Effect.
4. Compression Effect.
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1. History of thunderstorm that took place in
the locality.2. Evidence of the effects of lightning are
found in the vicinity like damage houses,
trees, and other objects, death of otherpersons and animals nearby.
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3. Absence of wound and other injuries
indicating suicidal or homicide death.
4. Skin often shows arborescence marking
due to superficial erythematic.
5. Burns may be present but only limited to
the part under the pieces of metals suchas watch, knife or bunch of keys.
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1. Surface burnsusually seen under
metallic object worn of carried by the
victim.
2. Linear burnsfound where the areas ofthe skin offer less resistance. (moist
creases and folds of the skin)
3. Arborescence or filigree burnstheseare radiating burns from a point, similar to
the electrocution.
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Death is usually the immediate effect due
to the involvement of the central nervous
system.
The shock is produce by theinstantaneous anemia of the brain brought
about by the spasmodic contraction of the
cerebral vessel. It may also cause immediate loss of
consciousness.
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Investigation of death due to lightning is
not by itself of any medico legal interest
for it is an accidental death. No one canbe held responsible to the effect of the
fortuitous event.
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The main cause of death in electricity is shock.
Ordinary domestic line is from 100-250 volts and
it is sufficient to produce death. The effect of 300 volts maybe similar to lightning
shocks.
Voltage is not only factor causing injury. As a
matter of fact amperage or intensity of the
electrical current is the principal factor.
The presence of moist skin, wet floor, barefoot,
proximity of metals, increase the conductivity ofthe body to electricity.
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Personal idiosyncrasy- physical conditionand the existence of metal.
Disease person suffering from cardiac
disease is predispose to death fromelectrical shock.
Anticipation of shock.
Sleep increases the resistance ofelectric current.
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Electrical voltage or tensionmost fatalities are
followed by a shock from a current at a tension
of 220250 volts.Amperage or intensity of electric current
principal factor.
Density of current.
Resistance of a body factors that will reduce
the resistance of the body to the electrical flow
will promote more injury.
Nature of the current alternating current ismore dangerous from direct current.
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Duration of contact low tension may kill
when contact is maintained from severalminutes. (a shorter duration of contact is
enough for high tension to produce death)
Point of entry contact of left side of thebody is claimed to be more dangerous
than that of the right side.
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Ventricular fibrillation which may lead to the
rupture of some of the muscle fibers and focal
hemorrhages in low voltage.
Respiratory failure due to bulbar paralysis inhigh voltage.
Mechanical asphyxia due to violent and
prolonged convulsion.
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Electrical necrosis some call it electrical marks or
current marking which may be seen at the point
of entrance and exit of the current.
Electric marks are painless and show no vitalreaction when accompanied by burns.
Repair is by a process of aseptic necrosis,
followed by luxuriant granulation and healing
leaves a smooth, thin, and pink scar.
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Remove the victim from live wireinstallation.
Artificial respiration which must continue
for about an hour until positive proof ofdeath is present.
Treatment of shock or coma cerebral
edema may be treated by lumbarpuncture.
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Death by electrocution is mostly accidental
but it could be suicidal or homicide.
Accidental electrocution usually occur ingrounded laundry line, stove, and outlets.
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