From others. Not mass surveillance by a private corporation.
Otherwise maybe I'll just set up my own cameras in public locations. If the police want the data they can pay per minute of footage. I'll let them search for metadata and tell them if footage matches with no visibility to the footage until after payment. If they search for something and don't purchase but come back for it - it's then increased pricing. If this is all public space and we can all build these systems because there's no expectation of privacy then all is fair in access to public right of way along roads.
> Not mass surveillance by a private corporation.
When that corporation is performing contracted work for the government, they act as the government's agent, making them subject to the same restrictions regarding civil rights as the government itself.
If someone set up their own camera and analytics platform outside of politicians and police officers homes and places of work, they would be taken down the next day. It's clearly biased towards people they see as not being able to fight back.