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Flock license plate readers cost city big, deliver little

https://www.sandiegouniontribune.com/2026/02/28/flock-license-plate-readers-cost-city-big-deliver-litte/
28•recallingmemory•2h ago

Comments

recallingmemory•2h ago
"In San Diego police’s February 2026 Annual Surveillance Report, the department discloses that officers conducted more than 244,000 searches of the Flock automated license plate reader technology in 2025. Those searches played a part in “advancing 361 cases.”

That is an outrageous 99.852% rate of ineffective searches.

The police also disclose that the cost of the system will be over $2 million this year — $2,012,500.

A 99.852% ineffective rate means city leaders will spend $2,009,521.50 on license plate reader technology that does not help any case."

LazyMans•1h ago
This is a flawed methodology for measuring success.

Solving a case isn't a single correct search. It's a tool, and a single case could have hundreds of searches associated with it.

As more regulation comes in, as it should, we should get much better auditing data that link each and every search to a specific case. This is evolving quickly at the moment, but ultimately it's up to the public to begin to push for requirements like these.

Currently departments do not necessarily require a case number, as many times a case number has not been created yet.

I think a more fair method to measure success is look at how effective each dollar spent on LE accounts for the whole picture. How much more effective did ALPR make each officer/detective on the force? Generally speaking, these are force multipliers and are much more effective than spending on pure body count. Many departments cannot fill seats even if they wanted to.

lux-lux-lux•51m ago
The quote says advancing a case, not ‘solving’ it. So yes, that number is exactly what you’re asking for.
HWR_14•38m ago
> A 99.852% ineffective rate means city leaders will spend $2,009,521.50 on license plate reader technology that does not help any case."

That's not at all what it means. The cost of the system is almost independent of the usage rate of the system. The proper math is that they spent $5,575 per case advanced. Is that a reasonable cost?

pixelready•19m ago
If I apply the Purpose of a System is What it Does (POSIWID) heuristic, then the purpose of Flock cameras can not be cost effective law enforcement.
pipejosh•1h ago
$2 million a year to run 244,000 searches that advanced 361 cases... That's about $5,500 per useful search.

Meanwhile every car that drove past one of those cameras got logged, timestamped, and stored. These things aren't not law enforcement, they're mass surveillance with a badge.

NuclearPM•1h ago
>These things aren't not law enforcement, they're mass surveillance with a badge.

That sounds like ChatGPT.

lux-lux-lux•50m ago
Also that $2 mil is the cost of the system, and doesn’t include all those man hours spent running unproductive queries.
markstos•1h ago
So Flock helped solve a case nearly every day of the year?
pavel_lishin•1h ago
Maybe! We don't know, all we know is that allegedly:

> Those searches played a part in “advancing 361 cases.”

What does "played a part" mean? What does "advancing a case" mean?

allthetime•45m ago
Reads like the intentionally obtuse language of an analytics guy making the numbers as big as possible without outright lying.
FireBeyond•22m ago
If you're Flock, and an officer ran a search against a Flock database, for a crime that was later solved, regardless of how it was solved, they will crow that "Flock solved a crime".

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