There was one case (in which the guy who had been the witness at the court hearing against the city earlier that day, was body-checked off the curb and then detained by uniformed cops) where after people started pointing at the attacker and shouting, he hung out with the cops chatting for a while, and even stood in the cop circle around the detained guy, and then eventually left with another cop.

There's a group of protesters who are a subset of the group that plans the protests and marches, who all lived together in the tent next to the med tent and are mostly anarchists, and they have been targeted for police harassment by undercovers/plainclothes. These cops come up to them and start reciting their personal information - your name is blah, you're from blah city, your birthday is blah, etc. One of them, a little undergrad, was leaving the court hearing, and an undercover followed her into the elevator and did this, and also brought up where her parents live, which could be, you know, construed as a threat against family members. We actually saw the relevant undercover on Friday evening - I was chatting with her and she noticed him on the sidewalk and pointed him out to me.