We Demand More Information on How Marin Cops Illegally Shared Flock ALPR Data
The EFF and ACLU of Northern California have sent a formal demand letter to the Marin County Sheriff's Office after the agency allegedly shared automated license plate reader data from its Flock Safety system with out-of-state and federal agencies, in apparent violation of California law.
Why this matters: Every driver in Marin County had their movements shared with agencies outside California without their knowledge and without legal authority. That is not a technicality. License plate readers build a detailed record of where you go and when. For immigrants, people seeking abortion care, or anyone the federal government has decided to watch, that data can cause real harm. California passed laws specifically to limit this kind of sharing. If a sheriff can ignore those laws quietly, the protections mean nothing. The demand letter is a start, but the public deserves to know exactly who received the data and what they did with it.
Who should care: Lawyers · Privacy officers · Compliance · Cybersecurity
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