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Muscle Proteins and the Time of Death

By Dplylemd

crime-scene

In any homicide, one the most important things, along with the cause and manner of death, that the ME must determine is the approximate time of death. This will help eliminate some suspects—-if they are far away from the scene and with many witnesses, for example—-and point the finger at others—-who might have been in the area at the time the murder occurred.

The problem is that most methods used to determine the time of death are inaccurate at best. They tend to be best guesses. And they are mostly useful only during the first 48 to 72 hours.

Check out my article “Timely Death” for a brief overview of how the time of death is estimated.

Or grab a copy of Forensics For Dummies or Howdunnit: Forensics for an in-depth discussion of this topic.

Researchers at the University of Salzburg are working in a new method that might allow the time of death determination to be accurately made up to 10 days after death. Their research suggests that measuring the rate of muscle protein degradation yields a clue to the time that has lapsed since death. If this technique proves to be accurate and reproducible in humans, it would be a giant step forward in criminal investigations.

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