The young pitbull has been in the custody of Animal Services since July when it bit the officer in the chest during a traffic stop and was then shot.
The owners had warned that the dog named Pig was young and easily frightened.
The officer, who was wearing a protective vest, wasn’t hurt, and the dog recovered after surgery.
A judge has ruled that there wasn’t enough evidence to suggest the dog would harm another person.
The dog’s owners say they are considering legal action.
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