A Cobb County police officer is on administrative leave after telling a woman during a traffic stop "you're not black. Remember, we only kill black people" in an incident that was caught on dash cam video.The incident occurred on July 16, but Cobb County Police Chief Mike Register received dashboard video from the incident on Aug. 25, according to the department. Once the comments were confirmed, a police spokesperson says the officer, identified as Lieutenant Gregg Abbott, was placed on administrative duties while the matter is being investigated.The video shows Lieutenant Abbott telling the woman that she needs to call her family to tell them not to come pick her up because she was being arrested and taken to jail. The vehicle was also being impounded