When the policeman arrived, he likely assessed the scene, spoke to witnesses, collected evidence, and possibly spoke to any suspects involved in the situation. He would have followed protocol, ensuring that everyone was safe and that the situation was under control. Depending on the circumstances, he may have taken statements from witnesses, filed a report, and potentially made an arrest if necessary.

Partner's response: When the policeman arrived, he likely got out of his car quickly, radioed for backup, and approached the scene cautiously. He probably asked bystanders what happened and took notes while assessing the situation. If there were any suspects present, he may have given them orders to put their hands up and joined by other officers, handcuffed them and took them into custody. Ultimately, the policeman would have worked to de-escalate the situation and maintain order.