Warrants, Number Plates, and the Slow Creep of Being Watched

I came across a discussion on r/privacy this morning about a US citizen rights group suing to force police to get a warrant before searching Flock Safety’s automatic number plate reader database. If you haven’t heard of Flock, they’re the company that’s quietly wired up thousands of intersections across America with cameras that read every plate that goes past, log the time and location, and store it. No warrant needed to search it, currently. That’s the whole fight.

What got me wasn’t the lawsuit itself. It was the comment thread underneath it. Nearly three thousand upvotes and the top replies weren’t debating whether a warrant requirement was a good idea. They were arguing about whether a warrant requirement is even the right question, because the cameras shouldn’t exist at all. One person put it bluntly: if it exists, it will be abused, and the abuse will be covered up. Another said requiring a warrant is a step forward in the wrong direction, because it legitimises the infrastructure rather than removing it.

That’s the tension that’s been sitting with me all day, because I don’t think either side is wrong.

A warrant requirement is a real, tangible improvement. It means police can’t just idly browse everyone’s movements looking for something interesting; they need probable cause first. That’s not nothing. But it also quietly accepts that the surveillance apparatus is a permanent fixture, and the only question left is who gets to use the key. Once that’s settled as normal, the fight to actually remove the cameras gets harder, not easier, because now there’s a “checks and balances” story politicians can point to. Nobody has to rip out the hardware. They just have to promise to be more careful with it.

We’ve got our own quieter version of this in Victoria. Point to Point speed cameras on the freeways, toll gantries on CityLink and EastLink that log every plate that passes, congestion-charging conversations that keep resurfacing. None of it is billed as surveillance. It’s billed as safety, or efficiency, or road funding. But the by-product is the same: a rolling, searchable record of where your car has been, sitting in a database somewhere, governed by whatever policy happens to be in place this year and revisable by whoever’s in charge next year. I don’t lose sleep over it day to day. I also don’t think “I don’t lose sleep over it” is a good argument for why it should exist unexamined.

The bit of the Reddit thread that stuck with me was someone pointing out that the actual bigger issue isn’t even police overreach, it’s who else gets access to the data for money. Insurers wanting an excuse to justify a premium hike. Data brokers buying bulk feeds. That’s the part that rarely makes the headline, because it’s boring and structural rather than dramatic. A cop misusing a database to stalk an ex-partner is a scandal with a name and a face. A company quietly reselling location patterns to three other companies who resell it again is just Tuesday.

I don’t have a tidy answer here, and I’m suspicious of anyone who does. Full abolition of ANPR and public camera networks sounds clean in a Reddit comment, less clean when you remember these systems also do genuinely help find stolen cars and missing kids sometimes. Warrant requirements sound like sensible incrementalism, right up until you notice that “sensible incrementalism” has been the exact framing that let a dozen surveillance tools become permanent over the last twenty years, one reasonable-sounding safeguard at a time.

What I keep coming back to is that the question “should this exist at all” needs to be asked before the infrastructure goes in, not after, because after is always going to be a negotiation about degree rather than principle. Once the cameras are up and the contracts are signed, the debate shifts from “do we want this” to “how do we regulate what we already have,” and regulation is always weaker than absence. That’s not an argument against every camera everywhere. It’s an argument for treating the decision to build the thing as the actual decision, not the fine print that comes after.

None of this stops me enjoying the fact that our tollway system knows exactly how often I take the Monash at 7:40am to avoid the worst of it. I just think it’s worth noticing that convenience and surveillance keep arriving in the same packaging, and we rarely get asked to unwrap them separately.