Many of these constitutional violations have become routine. For instance, even though it's illegal for police officers to detain a person – even briefly – without reasonable suspicion, it's become common practice for officers in Ferguson to stop pedestrians and request identification for no reason at all. And even in cases where police encounters start off as constitutionally defensible, we found that they frequently and rapidly escalate – and end up blatantly and unnecessarily crossing the line.

Update on Investigations in Ferguson (2015)