Police reform 6 years after 2020 — what's worked and what hasn't?

In the summer of 2020, cities across the country pledged police reform: body camera mandates, use-of-force restrictions, civilian oversight boards, mental health response teams. Six years later, what's the actual score? Some cities did meaningful changes: de-escalation training requirements, bans on chokeholds, civilian dispatch for non-emergency mental health calls. Some passed accountability measures that changed behavior. Others made pledges but never implemented them. The data on body cameras is actually mixed — they reduce complaints but haven't clearly changed outcomes. De-escalation training shows some promise but results vary widely by department. Mental health co-response teams in places like Denver and Eugene look genuinely promising. The harder questions are structural: does demilitarization change the police role? Does community policing work, or is it PR? Do reforms actually reduce the number of interactions that go badly — or just the ones that get reported? What evidence do we have? What's still contested? And what's the honest assessment — are we safer, more just, or both?