Our friend lxbean was arrested yesterday for observing the police accosting a drug user passed out near her front steps*. Reading her story it's amazing and frightening how quickly things go from "fine" to "put your hands behind your back!" and how bad these people were at de-escalation. They kept her in handcuffs for three hours before letting her go, hoping, I suppose, that she'd learned a lesson about standing up for other people. I'm glad she's not willing to let them get away with it. Advice, contacts, sympathy, and story sharing on her blog.
* I think she was actually arrested because she asked for the name of an officer she thought was behaving too aggressively, but that's not what it said on the court papers..