What Alameda County's records show
You don't have to take our word for it. The Alameda County Sheriff's Office has put important details about its Flock ALPR program into the public record. Here are some of those facts, linked directly to the County's documentation.
$854,200 contract ceiling
In a 2026 Board submission, Alameda County stated that its agreement with Flock Safety for the Sheriff's ALPR system and supporting software would be increased from $550,600 to $854,200, an increase of $303,600. The stated contract period was extended through 30 June 2026.
The Board approved the Flock amendment 3–2
On 21 April 2026, the Alameda County Board of Supervisors voted on the Sheriff's second Flock contract amendment. Supervisor Nate Miley moved approval and Board President David Haubert seconded the motion.
The motion passed 3–2.
YES: Nate Miley, Lena Tam and David Haubert.
NO: Nikki Fortunato Bas and Elisa Márquez.
The County's official minutes also record that 55 speakers spoke on the item.
Source: Alameda County Board of Supervisors — 21 April 2026 Summary Action Minutes, Item 55 →
ACSO's own 2025 outcome numbers
For the period 1 January through 1 December 2025, the Sheriff's Office reported 623 ALPR alerts. ACSO reported that 60 alerts resulted in an arrest, 53 resulted in recovery of stolen vehicles, 22 resulted in recovery of felony vehicles, and 146 resulted in deputies pulling a report number.
Those numbers matter. So does the denominator.
The Sheriff's reported successes belong in an honest discussion of the system. But those outcome figures do not, by themselves, tell the public how many vehicle observations were collected to produce them.
How many vehicles were recorded? How many observations concerned people suspected of no crime? How many searches were performed?
The cited Sheriff's response reports the alert and outcome figures above, but does not provide those corresponding totals.
The National Lookup Tool was turned off for ACSO data
The Sheriff's Office told the Board that after concerns arose in early 2025, ACSO asked Flock Safety to deactivate the National Lookup Tool for ACSO data. According to ACSO, that change was completed in March 2025.
That history makes access controls, sharing settings and independent oversight concrete questions rather than hypothetical ones.
ACSO says it owns the ALPR data
In its written response to the Board, the Sheriff's Office stated that data captured by its ALPR cameras is owned by the Alameda County Sheriff's Office.
What we are not claiming
The verified contract document cited above runs through 30 June 2026. We are not representing that $854,200 is necessarily the current contract amount after that date unless and until we verify a later County record.
We are also not publishing unverified claims about improper searches, camera totals or current sharing arrangements. Those items will be added when we have sufficiently reliable supporting records.