Police told a news conference Wednesday that the dog later died from the injury. The animal was initially thought to be a stray, but later was determined to have escaped from its home.
The alleged attack happened Saturday after police responded to a report of a woman being bitten. Deputy Commissioner Dean Palmere said officers gained control of the animal with a dog pole and an officer used a knife to cut the dog's throat.
Late Wednesday, Detective Jeremy Silbert issued a statement identifying that policeman as Officer Jeffrey Bolger.
Silbert says Bolger was charged with animal cruelty. It was not known if he had a lawyer.