Not necessarily. It may be the case that security cameras evolve to record onto physical unalterable storage like sensitive tape in a black box. And only something stored in those means is admissible in court.

Law would evolve

Yeah except at the end of the day a video is just pixels. There's a point where it's physically impossible to distinguish a video that was AI altered from a video that may as well be a recording of a real event.

Even metadata can be bypassed if someone really wants do.

This solution can't be sold if it's not possible