this description of the rest:
A comprehensive reporting requirement means that officers need to report each time they use force or threaten to use force against a civilian. A duty to intervene rule requires bystander officers to step in if a fellow officer is using excessive force and formally requires police officers to break the blue wall of silence and report such incidents to supervisors. The use of force continuum is a specific set of requirements governing what kinds of weapons can be used versus what levels of resistance. And a deescalation requirement mandates that officers try to secure their personal safety through distance and communication before resorting to force.As to the evidence that these measures reduce police violence, well, there is some. But it is not iron-clad and it is all subject to a big confounder: maybe these measures are all meaningless in themselves but seem to work because they represent a leadership push to reduce violence somehow. So if they were adopted in the middle of a crisis to calm the situation, without any real commitment from city and police leaders to enforce them, they might not matter at all. Still, a leadership commitment has to be expressed in some concrete rule changes, and these are certainly worth looking at.