Like warring gangs, two police juridstictions in Pennsylvania squared off against each other after one officer crossed a borough line to make an arrest.
The altercation, which took place last Friday, was all caught on video as the victim of the crime laid on the ground.
According to Fox 29, a woman flagged down an officer after she had been punched in the face by a man.
The officer happened to be from Colwyn borough. The incident took place in Darby borough.
Rather than hang around and wait for Darby cops to show up, the Colwyn cop arrested the man.
But then the Darby police chief pulled up to the scene and began yelling at the Colwyn cop who made the arrest, ordering him to get out of his borough.
The Colwyn cop got out of his car and had to be restrained.
Meanwhile, emergency service workers tended to the woman as she laid on the ground.