ALPR Program Overview

Executive summary

The available records show that the Board of Supervisors approved a proposed Flock Safety contract on February 25, 2025, followed by a 24-month agreement with a stated contract total of $85,500. The Sheriff’s Office later disclosed eight camera units at five general location groups.

The archive also contains training and access emails from 2023—well before the supplied 2025 contract—creating an unresolved question about the type of Flock subscription, network access, or other arrangement in place at that time.

Retention is another unresolved issue. The written CPRA response and Flock contract use a 30-day default, while the released Policy 473 says ALPR data downloaded to the server should be stored for a minimum of one year.

Program purpose in the records

The Board proposal describes intended uses including stolen or wanted vehicles, missing persons, warrants, investigations, and stolen property recovery. Policy 473 similarly limits the system to official law-enforcement business, though it states reasonable suspicion or probable cause is not required before using an ALPR.

General camera locations

The Sheriff’s Office identified Lake Camanche entrance/exit (two cameras), Shenandoah Road near Highway 49, Ridge Road and Highway 49 (two), Airport Road (two), and Ridge Road near Highway 88.

The archive intentionally does not publish a static map in this version. An interactive map can be added after coordinates and source-specific placement details are verified.

Key findings

• The Board approval packet is marked approved unanimously on February 25, 2025.
• The executed order form states an initial 24-month term, a $45,500 first-year subtotal, a $40,000 annual recurring subtotal, and an $85,500 contract total.
• Training and access rollout records date to 2023.
• Two external data-sharing records were released: Sacramento County and San Rafael.
• The released 30-day volume file contains 700,047 reads, averaging about 23,335 per day.
• The aggregate hotlist files contain 1,072 alerts.

Questions remaining

• What contractual or network arrangement supported the 2023 access and training?
• Does the one-year policy language apply to any server-side copy distinct from Flock’s 30-day cloud retention?
• Which California agencies were on the permitted-access list referenced in the response?
• When was each of the eight camera units installed and activated?