A much more feasible option would be to directly make it a law that camera footage must be producible on request, much like tax receipts, driver's insurance, tr

A much more feasible option would be to directly make it a law that camera footage must be producible on request, much like tax receipts, driver's insurance, transit passes and other such documents. There would still be lots of details to get right, but at least it wouldn't violate the basic underlying principles of our legal system.