This, one hundred times over. For any firearm in use by Johnny Law, a time-stamped feed of all the things mentioned above, including GPS location and audio clips. It’s uncommon to find an officer who has actually fired their weapon in the line of duty, so why would it be a problem?*
*That’s a rhetorical question because I have every expectation of LEO types becoming apoplectic with fury over even a suggestion that any such policy/practice being implemented.