Bodycams exonerate the innocent every time. They're an absolute, indisputable record of what happened, and if you didn't do anything wrong they'll prove it to everyone. If you're lying, bodycams will prove that too.

Keep that in mind when you see police fighting tooth and nail against body cams or, when they can't entirely prevent the use of a camera they fight to make sure they're the only ones with access to the footage. This is because they're a street gang, they know it, they break the law on a regular basis and rely on one another to lie. That's what the police do. They don't prevent crime, or we'd see that more police would lead to less crime and vice versa. They don't solve the vast majority of crimes. They give people an illusion of safety and order, and they apply violence indiscriminately to anything outside the normal order without regard to the law. They explicitly do not know the law, and thanks to qualified immunity they are simply not responsible for their actions. This is because the people who decide what the responsibilities of the police are know that they won't be the ones pulled out of their cars and beaten to death in the middle of the street.