Live Facial Recognition: A Guide for Law Enforcement Agencies

Live facial recognition (LFR) is one of the most powerful tools available to modern law enforcement. It can identify suspects in real time, locate missing persons, and secure high-risk events. But it's also one of the most scrutinised.

For agencies considering LFR, the challenge isn't just technical - it's operational, legal, and reputational. Deploying LFR effectively requires not only the right technology, but the right policies, training, and oversight.

This guide is designed to help law enforcement leaders navigate those decisions.

What Live Facial Recognition Can - and Cannot - Do

LFR systems work by comparing live video feeds against a database of known individuals - such as wanted persons, missing persons, or persons of interest. When a match is detected, the system alerts operators in real time.

What LFR can do:

Identify individuals on watchlists in crowded environments
Assist in locating missing or vulnerable persons
Provide real-time intelligence during events or operations
Support post-event investigations by flagging persons of interest

What LFR cannot do:

Replace human judgment or investigative work
Guarantee 100% accuracy in all conditions
Operate effectively without proper governance and oversight

LFR is a tool - not a silver bullet. Its value depends entirely on how it's deployed.

Key Considerations for Deployment

Accuracy and Reliability: Agencies should demand transparency on accuracy benchmarks, particularly on real-world footage.
Legal Compliance: LFR must operate within the bounds of applicable law, including data protection regulations.
Public Trust: Transparency about when and how LFR is used builds community trust.
Human Oversight: Every alert should be verified by a trained operator before action is taken.
Data Governance: Clear policies on data retention, access, and deletion are essential.

Sentinel LIVE: Built for Law Enforcement

Sentinel LIVE by AVA-X is designed specifically for the demands of law enforcement operations. Key features include:

99.82% accuracy on the LFW benchmark
Real-time alerting with confidence scores
Privacy-respecting architecture with on-premise deployment options
Seamless integration with existing CCTV infrastructure
Full audit trails for accountability and compliance

Conclusion: Responsible Power

Live facial recognition is a powerful tool - and with power comes responsibility. Agencies that deploy LFR thoughtfully, with the right technology and the right governance, can enhance public safety while maintaining public trust.