Karen B. London
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Dog Bite Leads to DNA Match
Evidence used to solve crime

A man unintentionally left evidence at the scene of his crime that led the police to link him with a home robbery. DNA in the mouth of the family dog matched that of David Stoddard.

The dog had bitten him in the arm and in the leg after a human member of the dog’s family had been assaulted during the break in. Stoddard or one of his accomplices then shot the dog. Sadly, the dog died from the gunshot.

After learning that he had bitten one of the criminals, the police swabbed the dog’s mouth for human DNA. Around the time the genetic match was found, Stoddard was arrested for shooting and killing a pregnant 16-year old.
Without the genetic evidence due to the dog’s bite, police may never have matched Stoddard with the earlier crime.


Karen B. London, PhD, is a Bark columnist and a Certified Applied Animal Behaviorist specializing in the evaluation and treatment of serious behavior problems in the domestic dog.

photo by digitalrob7/Flickr

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