HomeMy WebLinkAboutPRA 2026-128 (Flock)_City Council Study Session Presentation - 04.18.2023ALPR Surveillance Systems
City Council Study Session
April 18, 2023
Automated
License Plate
Readers
(ALPR)
■Investigatory tool that
monitors vehicle location,
travel patterns, etc.
■Collects data, cross-checks
with law enforcement
databases for stolen
vehicles and warrants.
Cameras are placed on street/signal
light poles, approx. 15 feet above
ground, hard-wired or solar-powered.
Cameras capture an image of the
vehicle, plate, and can identify make,
model, color, and features like stickers
and roof racks.
Location
System Capabilities
ALPR Data
belongs to
system owners
searchable in
the cloud and
can be
downloaded
and stored
locally
stored on cloud-
based servers
leased by system
provider
■Identify stolen vehicles that enter
surveillance area.
■Supplement investigations where a
witness or other evidence exists.
Deployment will not eliminate property
crime nor does it guarantee a decline..
ALPR System
Can be a powerful tool for law
enforcement investigators to:
Walnut Case Study
Property crime in Walnut increased in
2022, with burglaries up over 80%.
■56 individuals in custody.
Since launch of Flock system:
■64 vehicles recovered.
■Generation of leads on other
cases.
■Majority of arrests related to
stolen vehicles.
ALPR Key Points
scope can be
narrowed if cost
is a factor
estimated annual
cost to deploy a
Flock system is
$120,000-$240,000
most effective
when deployed
at ingress and
egress locations
Things to Consider
■expected advances in
technology
■use and access policies
■Public Records Act
■policies related to camera
placement
■training considerations
■privacy concerns
ALPR Surveillance Systems
City Council Study Session
April 18, 2023