> it is extremely easy to edit a green light to a red light, just partially delay the feed. Data is meaningless.

It is extremely easy to tamper with most evidence, and there are ways to detect tampering.

If they actually did it at scale they would run into conflicting dashcam footage very quickly, and the whole conspiracy would go belly up before bearing any fruit.

If you think data is meaningless we should also remove police cruisers' dashcams and stop the rollout of body cams, I guess? Those aren't conspiracy-proof either.

That implies malicious intent rather than a bug causing a false positive.