If we really want body cameras to work, there needs to be penalties for nonuse. For example lack of body camera removes qualified immunity protections for the officer(s) in question. My personal philosophy is that if called to be on a criminal jury, if the case relies on the officer's testimony and there is no camera, I will return a verdict of not guilty under the justification that the state has failed to prove its…
America desperately needs a national internal affairs department with an entirely separate reporting line whose boss answers directly to the president (or at least state governors). They could purchase, maintain the body cameras, collect and handle the footage and be trusted. If Biden is looking to score some points this would be a good way.
It would also help if police were not tasked with enforcing a litany of nanny state laws that shouldn't even be on the books to begin with. Any cop that wants to mess with a citizen can always find some excuse; with all the laws we have, all of us are violating some law every day.