I can write the other side for you right now, the same as the last few dozen times this type of thing happened: "We investigated ourselves, and found ourselves

I can write the other side for you right now, the same as the last few dozen times this type of thing happened: "We investigated ourselves, and found ourselves free of fault. The man in question was acting suspiciously and interfering with us protecting you. Our officers have to make snap judgments about circumstances like whether a suspicious person's ID is fake; they shouldn't be tried with perfect hindsight."