AZ has long lists of docuements a licensed care facility is required to maintain ....if some docuement is NOT on that list, why maintain it? IF you destroy a docuement AFTER it has been properly requested that's a different bad problem..but apparently you are merely speculating at what combatants might seek. And how old is the child and might one be addressing educational records ? Somewhat of an expensive unsuccessful local battle to obtain video records taken on a school bus .....expensive....why get involved as a 3d party in other battles?
what you think is a trade secret and privledged information may be far from the legal reality of what is privledged ...and why spend mega bucks to debate the points.
Absent some record as part of a role as a mandatory reporter ...I think video records are very questionable.