How Cops Are Using Flock Safety's ALPR Network to Surveil Protesters and Activists

Through an analysis of 10 months of nationwide searches on Flock Safety's servers, we discovered that more than 50 federal, state, and local agencies ran hundreds of searches through Flock's national network of surveillance data in connection with protest activity. In some cases, law enforcement specifically targeted known activist groups, demonstrating how mass surveillance technology increasingly threatens our freedom to demonstrate.

Electronic Frontier Foundation

I recently contributed to https://deflock.me/

We had a local story where the gist was the police said they searched ALPR for the welfare of a young woman, but it was actually more focused on a possible abortion. [1] "Unrelated" this same Sheriff was later charged with sexual harassment, perjury, and retaliation against a witness [2]. These are the types that are able to easily track you if they wanted to.

[1] https://www.eff.org/deeplinks/2025/10/flock-safety-and-texas...

[2] https://www.fox4news.com/news/johnson-county-sheriff-arreste...

DeFlock

Find license plate readers (LPRs) near you.

The thing about this Texas abortion Flock story is: whether or not your muni keeps Flock, absolutely no municipality should have out-of-state data sharing on (arguably, none of them should have any data sharing on at all --- operationally, departments do just fine making phone calls and getting the data they need).

This is totally configurable inside Flock. It's very easy for a police department to do. Sometimes they'll argue that they need to keep sharing open because sharing is reciprocal --- that's not true (in fact, you don't even need to have Flock cameras to get access to Flock data; that's a SKU Flock has!).

We piloted Flock with open sharing (my commission got consultation for the police General Order for ALPRs in our municipality, we pushed for no sharing alongside a bunch of other restrictions, we got most of what we wanted but not the sharing stuff). When the pilot ended and the board needed a go-no-go on deployment, another push got made on sharing and we got out-of-state sharing disabled as a condition of deployment. Then at contract renewal, when the writing was on the wall that we were killing the contract†, our police department turned off all sharing.

Even if you're not worried about stuff like reproductive health care (you should be), it doesn't make sense to allow departments that don't share your General Orders direct access to your telemetry.

† I wasn't a supporter on this for complicated reasons.

> arguably, none of them should

Indisputably, once someone has a hammer, especially one that grants them this much extra power, they will go looking for nails. In 2025 those who still defend those "hammers" with the wide-eyed impression that they can somehow control them once they're out there are at best showing hubris, lack of foresight, and disregard for the history books.

To be more clear, when you push for "less sharing" and somehow get it, you aren't actually getting what you want, you're just getting less of what you didn't want. It's like when the waiter asks you how much spit you want in your soup, the correct answer is to kick the waiter out not to demand a minimal amount.

This kind of reasoning is super useful if you live in a community that has a commanding majority of voters who read HN.