The animal control officer in Tyngsboro, Massachusetts, has been placed on paid administrative leave.
David Robson's wife, Susan, has been charged with animal cruelty in a case stemming from the couple's home-operated pet store.
She has pleaded not guilty to animal cruelty after investigators said she failed to care for a puppy that eventually died of parovirus.
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David Robson is not named as part of the investigation, but police are looking at all details.
The business is called Just Pups.