I don't want police officers in my home. However if police officers do come into my home then I absolutely want them to have a body camera so they can be held responsible for any actions they take.
I don't deny the benefit we seek, but there are risks, as well.
This is also something I would reply to your sibling comment as well, I think many would prefer a footage of their state instead of a description of it from a police officer who might be confused/distracted/filling-up-the-gaps. It is both more objective and more just. Jury should be allowed to see as it was and not just as it is displayed during the trial.