Flock charges to access the data which is voluntarily shared by other customers. I am struggling to note a difference in this practice from any other data brokerage service in existence.

Does Flock do some kind of P2P dance to avoid the data transiting their systems?

I was referring to the claim that "Flock's cameras collect more data than is provided to police agencies" — that suggests that there is data not "owned" by the customers, which implies it's Flock's data, thus it might make them liable under Data Broker legislation.

Equivocation. My stock broker doesn't own my stocks either, they merely hold my assets in a brokerage account.

So… Flock uses their own platform and top to bottom tech stack to do everything technically? Your local PD doesn’t use random cameras (like Reolink), doesn’t run a custom software stack (like Frigate in a container on some random VM hosted with AWS), doesn’t store the data wherever (like Backblaze)? The customers just have to install the Flock cameras and “order” the subsequent data from Flock? But you say they’re not at all responsible or accountable for any it because despite doing everything at every step, they’re “just a broker”?

If Flock's customers, using Flock's infrastructure or tooling, can share data with each other, that would be bad.

I'm not saying that's what's happening, but that's what I thought was happening before reading this thread, and now I have to go and run through their policies.

Either way ALPRs and AI-facial scanners in public are a huge violation of privacy and I loathe them, but I hope it's correct that Flock customers cannot easily share information with one another.