Thank you for explaining yourself Chaim.
Dr. Dan, your theory still makes zero sense. What would the rabbi be "protecting" him from? The deed was done.
Imagine the cop trying to justify in court his reaction to the victim either resisting arrest or trespass. The judge might see it as a green light for the cop to act the way he did. But with the rabbi stating, "No, I invited him.." not only makes the victim not a trespasser, but also makes the cop look even worse for doing the brutality and much more compassion by the judge on the side of the victim IMO.
The rabbi might have not been aware of making this invitation, but by stating that he was invited, it makes the victim even more innocent than some perceived as a trespasser.
Bottom line is this...the cop acted unjustly. When someone is supposedly trespassing, he has to be first told to leave. When he doesn't leave, then he should be handcuffed. I know this from personal experience.