Getting to be that body cams should be worn by everyone to protect themselves.
If you do get involved in a lethal or non-lethal self-defense situation, there is likely to be several unfriendly witnesses swearing that you were the aggressor. Along with carefully edited video.
Absent your own objective video record you will be screwed.
Any cop that doesn’t have theirs*ON* all the time is an idiot. Better a reprimand than having your life ruined.
Sorry, the person with the gun, badge, and authority of the State behind them does *NOT* get the benefit of the doubt, nor are they innocent until proved guilty any more; if there’s a dead Citizen there had better be solid video evidence of why, or kiss your career, and maybe your city goodbye.