Denver's License Plate Cameras Went Dark for a Month. Auto Theft Dropped 29% Anyway.

Denver’s contract with Flock Safety expired at the end of March 2026. The city’s 110 Flock cameras came down. A new contract with Axon had been approved by a single-vote City Council margin, but the transition left a gap: for the entire month of April 2026, Denver had no automated license plate reader system operating anywhere in the city.

What happened to auto theft during that month was not what surveillance vendors would predict.

According to police records obtained by 9NEWS through a public records request, 313 vehicles were stolen in Denver in April 2026 — the month with no cameras. In April 2025, when the Flock network was fully operational, 439 vehicles were stolen. That is a 29 percent drop, month-over-month year, with the cameras off.

The Numbers in Context

The drop is striking, but the picture is more complicated than a single headline.

When cameras were available in April 2025, Denver police cleared 13 percent of auto theft cases by arrest. When the cameras were dark in April 2026, that clearance rate fell to just 3 percent. Officers solved far fewer cases without the ability to query plate reader data after the fact.

The data presents a tension that neither camera proponents nor critics can fully resolve with a single month’s numbers: the cameras may help catch thieves after the fact even if they do not deter theft in the first place. Or the April 2026 drop could reflect other factors — seasonal variation, shifts in the stolen vehicle market, or changes in reporting practices.

Why Denver’s Cameras Came Down

Denver’s decision not to renew the Flock Safety contract was driven in part by data security concerns that surfaced during the contract review process. Flock Safety had been under scrutiny nationally over how its data is retained, who can access it, and whether local agencies have meaningful control over federal data sharing.

The City Council’s eventual approval of an Axon contract — passed by a single vote — came after significant public debate about whether any ALPR system belonged in Denver at all.

What the Experiment Revealed

Denver’s camera gap functions as something close to a natural experiment, the kind of before-and-after comparison that is rarely available in policy debates about surveillance technology. The results so far are inconclusive in the way that honest data usually is: theft dropped, but so did arrests.

For residents and policymakers, the month-without-cameras raises a question that vendors rarely answer directly: if the primary justification for a $36-million-per-year national camera expansion is crime deterrence, what does it mean when theft falls when the cameras go dark?

The cameras are coming back online in Denver under the Axon contract. The question of what they actually accomplish — and at what cost to privacy — has not been answered.