In many places, it's already public record, you just have to request it. However, some places are putting rules in after overly broad and onerous requests ("I want to every piece of body camera footage ever taken" for example, which actually happened in Washington state, and lead to a law a few years later). Usually privacy rights are strongly taken into consideration, and the videos have to be edited and reviewed by humans before release.

https://www.seattletimes.com/seattle-news/crime/washington-s...