Did the property air-conditioning guardrail hit the police?

According to the relevant data, alarm is displayed. It is necessary to call the police to let the police set the responsibility first, and then negotiate with the property. According to Article 1253 of the Civil Code, if an enterprise's buildings, structures or other facilities and their shelving and hanging objects fall off and cause damage to others, and the owner, manager or user cannot prove that he is not at fault, he shall bear tort liability.