California
San Luis Obispo County
On record
Checked 21 Aug 2026- Technologies
- 1
- Systems
- 1
- Devices mapped
- 189
San Luis Obispo County, California. Device data © OpenStreetMap contributors (ODbL), with community reporting via DeFlock. Open the full map →
This county’s record is one document, read twice, ten years apart.
The Sheriff’s Office publishes its policy manual, and Policy 466 covers licence plate readers. The Electronic Frontier Foundation collected the same policy a decade ago. Set the 2026 printing beside the 2016 one and almost nothing has moved: both are twenty-one sentences, and the differences are a renamed bureau, an added statutory citation and training requirement, and “the department server” becoming “a secure server”.
Unchanged is the sentence saying no reasonable suspicion or probable cause is needed before running a search. Unchanged is the sentence closing the data to public review. And unchanged is the mechanism the whole policy imagines: data “stored in department vehicles”, carried back and transferred to a server at intervals of up to a month. A patrol car with a camera on the roof.
Read the current policy end to end and it says nothing about a vendor, a vendor-hosted platform, a fixed camera on a pole, a nationwide search network, or a log of who searched what. Those are the mechanisms behind the findings in the two counties either side of this one. In Ventura a vendor error let out-of-state agencies query the sheriff’s plate data 364,000 times in a month. In Santa Barbara the sheriff had to read vendor audit logs to confirm it had not happened there.
We are not saying this policy is inadequate or ignored, because we have not established what this office operates. Three sources point three ways and none of them is verified here.
What we cannot describe at all is the county’s own decisions. The Board of Supervisors publishes through a portal that refuses automated clients, and the county seat’s website answers us with a 403.
What's in use here
The rulebook governing plate readers here describes cameras mounted on patrol cars. It has described cameras mounted on patrol cars, in materially the same words, since 2016.
Who runs it
The agency is the accountability unit: who voted, whose policy applies, and who answers a records request.
| Agency | Jurisdiction | Systems |
|---|---|---|
| San Luis Obispo County Sheriff's Office | San Luis Obispo 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 San Luis Obispo 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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