Controversial arrest this summer, an arrest some say involved Excessive Force. The arrest is led to an internal investigation involving bart police. Abc 7 News Reporter has reaction tonight from the force. Down on the ground get on the ground. Reporter this is july video of bart police arresting michael smith. He and his pregnant girlfriend, andrea appleton, were getting off bart. Get down, get down. We didnt know what for. Reporter bart just received this report. On the bus right now, getting off, just starting to rob me. We believe he has a weapon on him. Reporter the man who called 911 had been cursing at them and telling them they smelled. Neither smith nor appleton was armed. Do you believe your officers used Excessive Force . Absolutely not. It was absolutely a perfect response to what they had, a person with a weapon. Reporter you see the officer hit smith after submit spit. Some say it was a punch, another a distraction blow. Reporter another placing a knee on her back belly do