FoundDoris
Battery Life 12 hours - when new - diminishes with usage and the age of the battery; the battery is also built into the device so can not be changed.
Any footage can be marked as evidntial and saved indefinitely, this includes non-incidents. All footage is disclosable for any investigation - they might not be able to pass it to individual members of the public, but it is disclosable.
I don't need to know how a particular piece of equipment works, just how to use it & what it can do. For example, i don't need to know how a torch works - just how to use it and what it can do. I don't know how my radio works, how ii is able to digitize my voice from analogue to digital information and how that is actually passed to the comms operator so it can't be intercepted.
Firefighters won't know how the 'jaws of life' work. They will not need to know how specifics of the pump being able to build up sufficient hydraulic power in such a small chamber, yet have pin point accuracy in manipulating the jaws. And then how the pressure can be released, but still gain the accuracy on the jaws.
Paramedics will not need to know how the defibrillator works - how a small battery pack can deliver such a high voltage shock across the two paddles - and yet be able to monitor at the same time without a drop in its power. They just need to know how to use it & what it can do.
I agree with you also when you say it is questionable as to what was reported - i have been making this point throughout this thread.