California
Ventura County
On record
Checked 21 Aug 2026- Technologies
- 1
- Systems
- 1
- Devices mapped
- 313
Ventura County, California. Device data © OpenStreetMap contributors (ODbL), with community reporting via DeFlock. Open the full map →
In June 2023 the Sheriff’s Office turned off the feature that let police anywhere in the country search its licence plate data. California law requires that. Twenty months later it audited the system to check the switch had held.
It had not. For one month, from 19 February to 19 March 2025, agencies outside California queried this county’s plate data just over 364,000 times, in the Sheriff’s words “without our knowledge or approval”. Two hundred and ninety-nine of those searches carried justifications referencing immigration enforcement, which the Sheriff records as 0.08% of the total. The office found out eleven months after the window closed, after other California agencies discovered the same error.
The vendor could not say what happened. It told the office that logging limitations made the cause impossible to determine, and offered three explanations: an Office administrator, a Flock employee, or a bug. The Office investigated the first and found nobody there had done it. The exposure seems to have ended not because anyone caught it but because the company removed the option for California agencies entirely, for unrelated reasons, on about the last day of the window.
And the question underneath all of it has no answer. The Sheriff put it plainly: the office does not know whether any out-of-state or federal agency actually received images or information from its readers.
Every number here comes from a document this agency wrote and published about itself. It ran the audit, published the findings, and named the two remaining explanations, both of which point at its vendor. It now audits its own settings daily.
What this county cannot show is its own decision. The Board of Supervisors publishes on a platform we have no tooling to read, so we have no record of when the board approved this, what it cost, or whether the public was ever heard. That is a gap in what we can reach, not a finding about the board.
What's in use here
The office switched off national sharing in 2023. An audit found that out-of-state agencies had queried its data 364,000 times anyway, and nobody can say whether anything left.
Who runs it
The agency is the accountability unit: who voted, whose policy applies, and who answers a records request.
| Agency | Jurisdiction | Systems |
|---|---|---|
| Ventura County Sheriff's Office | Ventura County | 1 |
| 1 agency on record. A jointly run system counts against each of its operators, so this column is not a county total. | ||
Trackers
Meetings, contracts, records
Nothing listed yet. The trackers launch here, and facts appear only with their sources.
How the inventory works →What you can do
Civic action
Show up
Public comment is open to any resident, and you do not have to be an expert to use it. We have not yet confirmed where the bodies that decide for Ventura County meet. How the inventory works explains what we check and how to check it yourself.
How the inventory works →Personal protection
Protect yourself
Practical steps to shrink your personal data trail. Our guides publish at launch; until then, EFF's Surveillance Self-Defense is the best starting point.
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