Opinion; Cameras in the Dock: Is Domestic Tranquility Just an Aspiration? – Geoffrey Parker

A groundswell is sweeping American cities, counties, and states. Red-light cameras are switched off. Speed cameras come down. Automated license plate readers — ALPR, the cameras that photograph and log passing plates — get banned or sharply restricted. These decisions often land within months of each other. The debate rarely goes beyond privacy. Almost no one asks what removing these tools actually costs once the cameras go dark.

Much of today’s pushback rests on a false claim: that these cameras dishonor the Fourth Amendment. They don’t. They observe only what’s already exposed to public view — and in doing so, they serve one of government’s enumerated purposes: securing domestic order. Decision-makers now voting on these programs may be judged less on the vote itself than on the value they chose. Did they pick a narrow reading of privacy in public space? Or government’s actual duty to secure the tranquility that makes the rest of the Constitution’s promises livable?

The Preamble tells us why “We the People” ordained this government — including to “insure domestic Tranquility.” That clause, through the states’ police powers, is the root of the authority sheriffs and police departments exercise today. It echoes the Declaration’s “pursuit of Happiness,” a right that means nothing if it can’t be secured against violence and theft. On that foundation, police have always used whatever tools each era offered. The motorized patrol replaced the foot beat. The two-way radio replaced the call box. Then came DNA analysis, body cameras, and now networked surveillance cameras. Each drew resistance at first. Each became ordinary practice because it worked.

ALPR usually gets treated as a stand-alone fight. It isn’t. It’s one case in a broader category that includes red-light and speed cameras — all three doing the same job: observing public conduct and deterring bad behavior through the risk of detection. ALPR carries a sharper due-process concern. Unlike a single traffic photo, it builds a searchable movement history over time. That’s the concern the Supreme Court flagged in Carpenter v. United States (2018): enough accumulated location data can amount to a search, even when each data point was lawfully collected. That’s a real governance question — solve it with retention limits and access controls. It’s not a reason to assume the camera itself is the problem. And the consequences of that assumption aren’t abstract.

The Insurance Institute for Highway Safety studied 14 cities that turned off red-light cameras. Fatal red-light-running crashes rose 30 percent above trend. All fatal crashes at signalized intersections rose 16 percent. The reason isn’t a mystery. These cameras suppress the exact behavior that produces T-bone collisions — among the least survivable crash types, because a car’s side offers so little protection.

Speed cameras tell the same story closer to home. New York City’s program cut speeding at camera locations by 72 percent. It cut child pedestrian and bicycle injuries in school zones by 20 percent. The reason is simple: speed and injury severity are directly related. That’s exactly why a residential street is posted at 15 mph instead of 30. Pull the camera holding traffic near that limit, and speeds drift back toward whatever feels comfortable on a straight road. That’s not a policy abstraction. That’s the four-year-old on the tricycle.

Camera removal doesn’t stand alone, either. It’s the newest entry in a longer law-enforcement pattern. Limits on investigatory stops let armed repeat offenders pass by. Reduced bail returns arrestees to the street before trial — the “catch and release” cycle. Prosecutors decline cases even on clear evidence. For the officer who made the arrest, watching the same face cycle back through the system within days raises an uncomfortable question: why exactly am I doing this? That question doesn’t stay on the street. It shows up in recruitment numbers, too. The International Association of Chiefs of Police found more than 70 percent of agencies reporting recruitment harder than five years ago.

The pattern continues: Add a body camera an officer can’t turn off — every split-second call becomes raw material for after-the-fact judgment by people who weren’t there, sometimes amplified into a hyped headline. Add proposed changes to qualified immunity. Whatever their merits, they raise the prospect of years-long litigation naming the officer personally, reputational damage regardless of outcome, and stress that follows the officer’s family too. Add a facial-recognition regime that restricts law enforcement while leaving the technology almost untouched in the private sector — phones, doorbells, retail systems. The data collection doesn’t stop. It just moves to where there’s the least oversight. None of this needs exaggeration. The plain version is argument enough.

We live under government by consent. That means we can choose to cut the camera — any of them. But that choice deserves its full bill: a documented recruitment crisis, an officer corps less willing to engage proactively under constant second-guessing, and — as the red-light and speed camera numbers already show in hard terms — a return of T-bone crashes and residential speeding. Drivers and children go back at risk the cameras had been holding off.

When we call on government to insure domestic Tranquility, we should ask ourselves something. Did we mean it as an enforceable commitment? Or is it a phrase we’re content to leave aspirational? Each tool removed without a substitute is a small vote for the second reading. And on a residential street posted at 15 miles an hour, that vote has a face.