I think the ACLU or SJW should get involved now.
The SJW..? Is that a new agency?
I think maybe this whining is designed so that the police just can't win.
It's fine for citizens to video pretty much whatever they want and whenever they want, in public; but cops aren't allowed to too? So when the charges of police brutality start flying, the only evidence is a bystander's video that conveniently begins halfway into the altercation, and /or from around the corner, skewing all context? This was the whole point of the body cameras, to provide a record of an entire encounter to be used as evidence, at no small cost or inconvenience to law enforcement.
No, if you're out in public, you have no expectation of privacy unless it pertains to your personal space. Obviously no one can just walk up to you and look at the contents of your wallet or purse, but whatever actions you take in a public place are public actions.
Human eyes are lenses, human brains are recording devices; but they're not nearly as reliable or objective as electronic ones.