Government surveillance

One-to-one and one-to-many facial comparison systems can use facial images to verify or search for identity. Illinois Secretary of State records and law expressly establish use of facial recognition in the driver-license / identification-card environment.

HOW YOU ENCOUNTER IT

Obtaining or holding an Illinois driver license / ID, or being the subject of a qualifying facial-recognition search.

DATA

Biometric identification

Networked cameras read license plates and commonly associate those detections with time, location, and vehicle characteristics for alerts and retrospective search.

HOW YOU ENCOUNTER IT

Driving past a fixed or vehicle-mounted plate-reader camera.

DATA

Vehicle surveillance

Law-enforcement drones can carry cameras and other sensors for aerial observation, search, documentation, and emergency response.

HOW YOU ENCOUNTER IT

Being present in an area observed by a law-enforcement drone during an authorized operation.

DATA

Aerial surveillance

Fingerprint systems compare biometric records for identity, criminal-history, background-check, and investigative purposes.

HOW YOU ENCOUNTER IT

Interacting with, passing through, or becoming the subject of the documented government system.

DATA

Biometric identification

Cell-site simulators can cause nearby phones or other communications devices to interact with a law-enforcement device so that identifying or location information can be obtained. Illinois law also places passive digital analyzers and passive interception devices inside its definition.

HOW YOU ENCOUNTER IT

Interacting with, passing through, or becoming the subject of the documented government system.

DATA

Device identification & location

Modern ALPR systems can describe and re-identify vehicles using more than a plate number. Vehicle make, model, color, distinguishing characteristics, and other machine-readable attributes can turn a vehicle — privately owned property — into a searchable signature.

HOW YOU ENCOUNTER IT

Interacting with, passing through, or becoming the subject of the documented government system.

DATA

Property identification & tracking

Distributed acoustic sensors detect impulsive sounds, estimate a probable gunshot location, and generate alerts for review and police response.

HOW YOU ENCOUNTER IT

Interacting with, passing through, or becoming the subject of the documented government system.

DATA

Acoustic surveillance

Body-worn and vehicle-mounted systems record law-enforcement encounters and typically depend on evidence-management software and storage infrastructure.

HOW YOU ENCOUNTER IT

Interacting with, passing through, or becoming the subject of the documented government system.

DATA

Audio / video surveillance

Concealed surveillance cameras permit investigators to record locations or subjects without an obvious camera installation.

HOW YOU ENCOUNTER IT

Interacting with, passing through, or becoming the subject of the documented government system.

DATA

Audio / video surveillance

Passive radio-analysis systems can collect identifying or signaling information emitted by communications devices without necessarily impersonating a cellular base station.

HOW YOU ENCOUNTER IT

Interacting with, passing through, or becoming the subject of the documented government system.

DATA

Device identification & location

U.S. Customs and Border Protection uses face-comparison technology at Chicago O’Hare, including Enhanced Passenger Processing for returning U.S. citizens.

HOW YOU ENCOUNTER IT

Returning to the United States through an applicable CBP inspection process at Chicago O’Hare.

DATA

Facial image · Traveler identity · Travel/inspection context