On April 28, 2005 Philadelphia, PA NBC 10's helicopter recorded the physical assault of a robbery suspect on film. An officer was observed hitting a hand cuffed suspect while on the ground then hit again before being placed in the squad car. During this ordeal, the officer's co-workers made no visible attempt to intervene during the attack.
According to A.J. Westrich, Ph D an expert defense witness for law enforcement, wrote an article that appeared on the website "America's Police Beat" which mentioned that physical aggression displayed by officers may be 'normal'. Westrich believes when an officer feels under attack they may experience several emotions such as initial shock,fear and anger. Westrich theorizes when the officer goes through the anger phase behavior such as kicking is not punishment but a response to anger.
One may question how much danger the officer believed he was in. The suspect was already in a vulnerable position in handcuffs and surrounded by other armed personnel. It is also difficult to fathom how a veteran officer of approximately 10 years felt provoked enough to display such behavior after allegedly being spat on and racially insulted.
An alternate theory to Westrich's postulation is that of arrogance. Despite hearing the overhead news helicopter and seeing the spotlight shined directly on him, he ignored the helicopter as well as the presence of his fellow officers. If this officer displayed such violent behavior while being observed, it is indefinite how many other victims may have been assaulted in isolation.