It wasn't hard to see the police presance, even though they tried to maintain a polite distance at all times. They were just there making sure everybody obeyed the law. I thought about that when I looked at the poster leaned up against the tree between the green and yellow tents, which I reproduced below for your contemplation.
I remember talking to a guy that told me "Cops are there for law enforcement. The military simply does what it's told." I don't know how true his words were.