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.
David Robson is not named as part of the investigation, but police are looking at all details.
The business is called Just Pups.